Home / 246,428.11-369,687.66-77,990.77

Finding the Fourth Proportional to 246,428.11, 369,687.66 and 77,990.77

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Solution

The fourth proportional to 246,428.11, 369,687.66 and 77,990.77 is: 117,000.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,428.11 : 369,687.66 = 77,990.77 : x
  2. Step 2: Convert to fraction form
    246,428.11/369,687.66 = 77,990.77/x
  3. Step 3: Cross multiply
    246,428.11x = 369,687.66 × 77,990.77
  4. Step 4: Simplify right side
    246,428.11x = 28,832,225,262.90
  5. Step 5: Solve for x
    x = 28,832,225,262.90/246,428.11
  6. Step 6: Final answer
    x = 117,000.55

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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.