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Finding the Fourth Proportional to 291,773.54, 402,647.15 and 157,637.54

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Solution

The fourth proportional to 291,773.54, 402,647.15 and 157,637.54 is: 217,539.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,773.54 : 402,647.15 = 157,637.54 : x
  2. Step 2: Convert to fraction form
    291,773.54/402,647.15 = 157,637.54/x
  3. Step 3: Cross multiply
    291,773.54x = 402,647.15 × 157,637.54
  4. Step 4: Simplify right side
    291,773.54x = 63,472,307,614.72
  5. Step 5: Solve for x
    x = 63,472,307,614.72/291,773.54
  6. Step 6: Final answer
    x = 217,539.63

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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.