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Finding the Fourth Proportional to 485,007.16, 727,510.83 and 148,049.68

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Solution

The fourth proportional to 485,007.16, 727,510.83 and 148,049.68 is: 222,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,007.16 : 727,510.83 = 148,049.68 : x
  2. Step 2: Convert to fraction form
    485,007.16/727,510.83 = 148,049.68/x
  3. Step 3: Cross multiply
    485,007.16x = 727,510.83 × 148,049.68
  4. Step 4: Simplify right side
    485,007.16x = 107,707,745,578.03
  5. Step 5: Solve for x
    x = 107,707,745,578.03/485,007.16
  6. Step 6: Final answer
    x = 222,074.55

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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.