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Finding the Fourth Proportional to 199,592.80, 299,389.20 and 88,784.80

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Solution

The fourth proportional to 199,592.80, 299,389.20 and 88,784.80 is: 133,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,592.80 : 299,389.20 = 88,784.80 : x
  2. Step 2: Convert to fraction form
    199,592.80/299,389.20 = 88,784.80/x
  3. Step 3: Cross multiply
    199,592.80x = 299,389.20 × 88,784.80
  4. Step 4: Simplify right side
    199,592.80x = 26,581,210,244.16
  5. Step 5: Solve for x
    x = 26,581,210,244.16/199,592.80
  6. Step 6: Final answer
    x = 133,177.20

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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.