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Finding the Fourth Proportional to 250,229.47, 345,341.49 and 142,815.77

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Solution

The fourth proportional to 250,229.47, 345,341.49 and 142,815.77 is: 197,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,229.47 : 345,341.49 = 142,815.77 : x
  2. Step 2: Convert to fraction form
    250,229.47/345,341.49 = 142,815.77/x
  3. Step 3: Cross multiply
    250,229.47x = 345,341.49 × 142,815.77
  4. Step 4: Simplify right side
    250,229.47x = 49,320,210,807.30
  5. Step 5: Solve for x
    x = 49,320,210,807.30/250,229.47
  6. Step 6: Final answer
    x = 197,099.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.