Home / 343,935.18-516,099.60-133,545.78

Finding the Fourth Proportional to 343,935.18, 516,099.60 and 133,545.78

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Solution

The fourth proportional to 343,935.18, 516,099.60 and 133,545.78 is: 200,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,935.18 : 516,099.60 = 133,545.78 : x
  2. Step 2: Convert to fraction form
    343,935.18/516,099.60 = 133,545.78/x
  3. Step 3: Cross multiply
    343,935.18x = 516,099.60 × 133,545.78
  4. Step 4: Simplify right side
    343,935.18x = 68,922,923,639.69
  5. Step 5: Solve for x
    x = 68,922,923,639.69/343,935.18
  6. Step 6: Final answer
    x = 200,395.10

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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.