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Finding the Fourth Proportional to 347,272.40, 520,519.80 and 178,727.60

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Solution

The fourth proportional to 347,272.40, 520,519.80 and 178,727.60 is: 267,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,272.40 : 520,519.80 = 178,727.60 : x
  2. Step 2: Convert to fraction form
    347,272.40/520,519.80 = 178,727.60/x
  3. Step 3: Cross multiply
    347,272.40x = 520,519.80 × 178,727.60
  4. Step 4: Simplify right side
    347,272.40x = 93,031,254,606.48
  5. Step 5: Solve for x
    x = 93,031,254,606.48/347,272.40
  6. Step 6: Final answer
    x = 267,891.30

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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.