Home / 312,557.12-431,327.10-169,319.96

Finding the Fourth Proportional to 312,557.12, 431,327.10 and 169,319.96

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Solution

The fourth proportional to 312,557.12, 431,327.10 and 169,319.96 is: 233,660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,557.12 : 431,327.10 = 169,319.96 : x
  2. Step 2: Convert to fraction form
    312,557.12/431,327.10 = 169,319.96/x
  3. Step 3: Cross multiply
    312,557.12x = 431,327.10 × 169,319.96
  4. Step 4: Simplify right side
    312,557.12x = 73,032,287,318.92
  5. Step 5: Solve for x
    x = 73,032,287,318.92/312,557.12
  6. Step 6: Final answer
    x = 233,660.61

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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.