Home / 380,979.45-571,429.08-156,363.62

Finding the Fourth Proportional to 380,979.45, 571,429.08 and 156,363.62

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Solution

The fourth proportional to 380,979.45, 571,429.08 and 156,363.62 is: 234,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,979.45 : 571,429.08 = 156,363.62 : x
  2. Step 2: Convert to fraction form
    380,979.45/571,429.08 = 156,363.62/x
  3. Step 3: Cross multiply
    380,979.45x = 571,429.08 × 156,363.62
  4. Step 4: Simplify right side
    380,979.45x = 89,350,716,664.92
  5. Step 5: Solve for x
    x = 89,350,716,664.92/380,979.45
  6. Step 6: Final answer
    x = 234,528.97

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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.