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Finding the Fourth Proportional to 291,902.92, 402,866 and 171,092.32

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Solution

The fourth proportional to 291,902.92, 402,866 and 171,092.32 is: 236,130.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,902.92 : 402,866 = 171,092.32 : x
  2. Step 2: Convert to fraction form
    291,902.92/402,866 = 171,092.32/x
  3. Step 3: Cross multiply
    291,902.92x = 402,866 × 171,092.32
  4. Step 4: Simplify right side
    291,902.92x = 68,927,278,589.12
  5. Step 5: Solve for x
    x = 68,927,278,589.12/291,902.92
  6. Step 6: Final answer
    x = 236,130.83

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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.