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Finding the Fourth Proportional to 224,000.80, 336,154.80 and 99,431.20

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Solution

The fourth proportional to 224,000.80, 336,154.80 and 99,431.20 is: 149,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,000.80 : 336,154.80 = 99,431.20 : x
  2. Step 2: Convert to fraction form
    224,000.80/336,154.80 = 99,431.20/x
  3. Step 3: Cross multiply
    224,000.80x = 336,154.80 × 99,431.20
  4. Step 4: Simplify right side
    224,000.80x = 33,424,275,149.76
  5. Step 5: Solve for x
    x = 33,424,275,149.76/224,000.80
  6. Step 6: Final answer
    x = 149,214.98

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1.5x scale

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.