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Finding the Fourth Proportional to 308,795.38, 426,242.74 and 181,508.74

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Solution

The fourth proportional to 308,795.38, 426,242.74 and 181,508.74 is: 250,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,795.38 : 426,242.74 = 181,508.74 : x
  2. Step 2: Convert to fraction form
    308,795.38/426,242.74 = 181,508.74/x
  3. Step 3: Cross multiply
    308,795.38x = 426,242.74 × 181,508.74
  4. Step 4: Simplify right side
    308,795.38x = 77,366,782,671.55
  5. Step 5: Solve for x
    x = 77,366,782,671.55/308,795.38
  6. Step 6: Final answer
    x = 250,543.85

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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.