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Finding the Fourth Proportional to 282,493.44, 423,737.28 and 85,501.44

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Solution

The fourth proportional to 282,493.44, 423,737.28 and 85,501.44 is: 128,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,493.44 : 423,737.28 = 85,501.44 : x
  2. Step 2: Convert to fraction form
    282,493.44/423,737.28 = 85,501.44/x
  3. Step 3: Cross multiply
    282,493.44x = 423,737.28 × 85,501.44
  4. Step 4: Simplify right side
    282,493.44x = 36,230,147,621.68
  5. Step 5: Solve for x
    x = 36,230,147,621.68/282,493.44
  6. Step 6: Final answer
    x = 128,251.29

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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.