Home / 380,737.10-571,105.65-100,282.70

Finding the Fourth Proportional to 380,737.10, 571,105.65 and 100,282.70

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Solution

The fourth proportional to 380,737.10, 571,105.65 and 100,282.70 is: 150,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,737.10 : 571,105.65 = 100,282.70 : x
  2. Step 2: Convert to fraction form
    380,737.10/571,105.65 = 100,282.70/x
  3. Step 3: Cross multiply
    380,737.10x = 571,105.65 × 100,282.70
  4. Step 4: Simplify right side
    380,737.10x = 57,272,016,567.26
  5. Step 5: Solve for x
    x = 57,272,016,567.26/380,737.10
  6. Step 6: Final answer
    x = 150,424.05

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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.