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Finding the Fourth Proportional to 222,861.92, 307,543.91 and 124,743.78

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Solution

The fourth proportional to 222,861.92, 307,543.91 and 124,743.78 is: 172,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,861.92 : 307,543.91 = 124,743.78 : x
  2. Step 2: Convert to fraction form
    222,861.92/307,543.91 = 124,743.78/x
  3. Step 3: Cross multiply
    222,861.92x = 307,543.91 × 124,743.78
  4. Step 4: Simplify right side
    222,861.92x = 38,364,189,225.66
  5. Step 5: Solve for x
    x = 38,364,189,225.66/222,861.92
  6. Step 6: Final answer
    x = 172,143.32

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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.