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Finding the Fourth Proportional to 211,361.59, 291,691.02 and 125,371.59

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Solution

The fourth proportional to 211,361.59, 291,691.02 and 125,371.59 is: 173,019.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,361.59 : 291,691.02 = 125,371.59 : x
  2. Step 2: Convert to fraction form
    211,361.59/291,691.02 = 125,371.59/x
  3. Step 3: Cross multiply
    211,361.59x = 291,691.02 × 125,371.59
  4. Step 4: Simplify right side
    211,361.59x = 36,569,766,966.12
  5. Step 5: Solve for x
    x = 36,569,766,966.12/211,361.59
  6. Step 6: Final answer
    x = 173,019.93

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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.