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Finding the Fourth Proportional to 312,727.96, 431,552.98 and 169,484.93

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Solution

The fourth proportional to 312,727.96, 431,552.98 and 169,484.93 is: 233,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,727.96 : 431,552.98 = 169,484.93 : x
  2. Step 2: Convert to fraction form
    312,727.96/431,552.98 = 169,484.93/x
  3. Step 3: Cross multiply
    312,727.96x = 431,552.98 × 169,484.93
  4. Step 4: Simplify right side
    312,727.96x = 73,141,726,606.59
  5. Step 5: Solve for x
    x = 73,141,726,606.59/312,727.96
  6. Step 6: Final answer
    x = 233,882.91

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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.