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Finding the Fourth Proportional to 202,700.20, 304,136.70 and 127,877.80

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Solution

The fourth proportional to 202,700.20, 304,136.70 and 127,877.80 is: 191,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,700.20 : 304,136.70 = 127,877.80 : x
  2. Step 2: Convert to fraction form
    202,700.20/304,136.70 = 127,877.80/x
  3. Step 3: Cross multiply
    202,700.20x = 304,136.70 × 127,877.80
  4. Step 4: Simplify right side
    202,700.20x = 38,892,332,095.26
  5. Step 5: Solve for x
    x = 38,892,332,095.26/202,700.20
  6. Step 6: Final answer
    x = 191,871.21

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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.