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Finding the Fourth Proportional to 347,343.40, 521,015.10 and 169,964.20

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Solution

The fourth proportional to 347,343.40, 521,015.10 and 169,964.20 is: 254,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,343.40 : 521,015.10 = 169,964.20 : x
  2. Step 2: Convert to fraction form
    347,343.40/521,015.10 = 169,964.20/x
  3. Step 3: Cross multiply
    347,343.40x = 521,015.10 × 169,964.20
  4. Step 4: Simplify right side
    347,343.40x = 88,553,914,659.42
  5. Step 5: Solve for x
    x = 88,553,914,659.42/347,343.40
  6. Step 6: Final answer
    x = 254,946.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.