Home / 261,439.54-392,001.18-117,318.94

Finding the Fourth Proportional to 261,439.54, 392,001.18 and 117,318.94

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Solution

The fourth proportional to 261,439.54, 392,001.18 and 117,318.94 is: 175,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,439.54 : 392,001.18 = 117,318.94 : x
  2. Step 2: Convert to fraction form
    261,439.54/392,001.18 = 117,318.94/x
  3. Step 3: Cross multiply
    261,439.54x = 392,001.18 × 117,318.94
  4. Step 4: Simplify right side
    261,439.54x = 45,989,162,916.35
  5. Step 5: Solve for x
    x = 45,989,162,916.35/261,439.54
  6. Step 6: Final answer
    x = 175,907.45

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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.