Home / 284,435.27-392,307.88-198,398.69

Finding the Fourth Proportional to 284,435.27, 392,307.88 and 198,398.69

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Solution

The fourth proportional to 284,435.27, 392,307.88 and 198,398.69 is: 273,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,435.27 : 392,307.88 = 198,398.69 : x
  2. Step 2: Convert to fraction form
    284,435.27/392,307.88 = 198,398.69/x
  3. Step 3: Cross multiply
    284,435.27x = 392,307.88 × 198,398.69
  4. Step 4: Simplify right side
    284,435.27x = 77,833,368,972.68
  5. Step 5: Solve for x
    x = 77,833,368,972.68/284,435.27
  6. Step 6: Final answer
    x = 273,641.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.