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Finding the Fourth Proportional to 291,644.18, 402,468.88 and 157,508.18

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Solution

The fourth proportional to 291,644.18, 402,468.88 and 157,508.18 is: 217,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,644.18 : 402,468.88 = 157,508.18 : x
  2. Step 2: Convert to fraction form
    291,644.18/402,468.88 = 157,508.18/x
  3. Step 3: Cross multiply
    291,644.18x = 402,468.88 × 157,508.18
  4. Step 4: Simplify right side
    291,644.18x = 63,392,138,389.32
  5. Step 5: Solve for x
    x = 63,392,138,389.32/291,644.18
  6. Step 6: Final answer
    x = 217,361.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.