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Finding the Fourth Proportional to 437,088.68, 655,298.22 and 137,395.88

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Solution

The fourth proportional to 437,088.68, 655,298.22 and 137,395.88 is: 205,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,088.68 : 655,298.22 = 137,395.88 : x
  2. Step 2: Convert to fraction form
    437,088.68/655,298.22 = 137,395.88/x
  3. Step 3: Cross multiply
    437,088.68x = 655,298.22 × 137,395.88
  4. Step 4: Simplify right side
    437,088.68x = 90,035,275,599.33
  5. Step 5: Solve for x
    x = 90,035,275,599.33/437,088.68
  6. Step 6: Final answer
    x = 205,988.58

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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.