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Finding the Fourth Proportional to 437,228.15, 655,779.92 and 137,700.93

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Solution

The fourth proportional to 437,228.15, 655,779.92 and 137,700.93 is: 206,531.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,228.15 : 655,779.92 = 137,700.93 : x
  2. Step 2: Convert to fraction form
    437,228.15/655,779.92 = 137,700.93/x
  3. Step 3: Cross multiply
    437,228.15x = 655,779.92 × 137,700.93
  4. Step 4: Simplify right side
    437,228.15x = 90,301,504,170.82
  5. Step 5: Solve for x
    x = 90,301,504,170.82/437,228.15
  6. Step 6: Final answer
    x = 206,531.77

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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.