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Finding the Fourth Proportional to 610,134.93, 915,249.17 and 205,329.12

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Solution

The fourth proportional to 610,134.93, 915,249.17 and 205,329.12 is: 308,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,134.93 : 915,249.17 = 205,329.12 : x
  2. Step 2: Convert to fraction form
    610,134.93/915,249.17 = 205,329.12/x
  3. Step 3: Cross multiply
    610,134.93x = 915,249.17 × 205,329.12
  4. Step 4: Simplify right side
    610,134.93x = 187,927,306,656.83
  5. Step 5: Solve for x
    x = 187,927,306,656.83/610,134.93
  6. Step 6: Final answer
    x = 308,009.42

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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.