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Finding the Fourth Proportional to 386,807.67, 580,020.82 and 159,061.73

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Solution

The fourth proportional to 386,807.67, 580,020.82 and 159,061.73 is: 238,514.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,807.67 : 580,020.82 = 159,061.73 : x
  2. Step 2: Convert to fraction form
    386,807.67/580,020.82 = 159,061.73/x
  3. Step 3: Cross multiply
    386,807.67x = 580,020.82 × 159,061.73
  4. Step 4: Simplify right side
    386,807.67x = 92,259,111,767.46
  5. Step 5: Solve for x
    x = 92,259,111,767.46/386,807.67
  6. Step 6: Final answer
    x = 238,514.17

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1.5x scale

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.