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Finding the Fourth Proportional to 162,310.40, 243,757.20 and 117,987.20

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Solution

The fourth proportional to 162,310.40, 243,757.20 and 117,987.20 is: 177,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,310.40 : 243,757.20 = 117,987.20 : x
  2. Step 2: Convert to fraction form
    162,310.40/243,757.20 = 117,987.20/x
  3. Step 3: Cross multiply
    162,310.40x = 243,757.20 × 117,987.20
  4. Step 4: Simplify right side
    162,310.40x = 28,760,229,507.84
  5. Step 5: Solve for x
    x = 28,760,229,507.84/162,310.40
  6. Step 6: Final answer
    x = 177,192.77

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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.