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Finding the Fourth Proportional to 437,135.95, 655,646.51 and 137,618.10

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Solution

The fourth proportional to 437,135.95, 655,646.51 and 137,618.10 is: 206,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,135.95 : 655,646.51 = 137,618.10 : x
  2. Step 2: Convert to fraction form
    437,135.95/655,646.51 = 137,618.10/x
  3. Step 3: Cross multiply
    437,135.95x = 655,646.51 × 137,618.10
  4. Step 4: Simplify right side
    437,135.95x = 90,228,827,321.88
  5. Step 5: Solve for x
    x = 90,228,827,321.88/437,135.95
  6. Step 6: Final answer
    x = 206,409.07

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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.