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Finding the Fourth Proportional to 436,877.42, 655,315.52 and 137,384.24

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Solution

The fourth proportional to 436,877.42, 655,315.52 and 137,384.24 is: 206,076.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,877.42 : 655,315.52 = 137,384.24 : x
  2. Step 2: Convert to fraction form
    436,877.42/655,315.52 = 137,384.24/x
  3. Step 3: Cross multiply
    436,877.42x = 655,315.52 × 137,384.24
  4. Step 4: Simplify right side
    436,877.42x = 90,030,020,711.91
  5. Step 5: Solve for x
    x = 90,030,020,711.91/436,877.42
  6. Step 6: Final answer
    x = 206,076.16

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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.