Home / 291,705.10-402,553.29-157,569.10

Finding the Fourth Proportional to 291,705.10, 402,553.29 and 157,569.10

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Solution

The fourth proportional to 291,705.10, 402,553.29 and 157,569.10 is: 217,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,705.10 : 402,553.29 = 157,569.10 : x
  2. Step 2: Convert to fraction form
    291,705.10/402,553.29 = 157,569.10/x
  3. Step 3: Cross multiply
    291,705.10x = 402,553.29 × 157,569.10
  4. Step 4: Simplify right side
    291,705.10x = 63,429,959,607.34
  5. Step 5: Solve for x
    x = 63,429,959,607.34/291,705.10
  6. Step 6: Final answer
    x = 217,445.49

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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.