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Finding the Fourth Proportional to 407,480.77, 611,082.74 and 141,179.13

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Solution

The fourth proportional to 407,480.77, 611,082.74 and 141,179.13 is: 211,720.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,480.77 : 611,082.74 = 141,179.13 : x
  2. Step 2: Convert to fraction form
    407,480.77/611,082.74 = 141,179.13/x
  3. Step 3: Cross multiply
    407,480.77x = 611,082.74 × 141,179.13
  4. Step 4: Simplify right side
    407,480.77x = 86,272,129,944.16
  5. Step 5: Solve for x
    x = 86,272,129,944.16/407,480.77
  6. Step 6: Final answer
    x = 211,720.74

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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.