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Finding the Fourth Proportional to 436,851.92, 655,277.40 and 137,358.72

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Solution

The fourth proportional to 436,851.92, 655,277.40 and 137,358.72 is: 206,037.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,851.92 : 655,277.40 = 137,358.72 : x
  2. Step 2: Convert to fraction form
    436,851.92/655,277.40 = 137,358.72/x
  3. Step 3: Cross multiply
    436,851.92x = 655,277.40 × 137,358.72
  4. Step 4: Simplify right side
    436,851.92x = 90,008,064,908.93
  5. Step 5: Solve for x
    x = 90,008,064,908.93/436,851.92
  6. Step 6: Final answer
    x = 206,037.93

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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.