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Finding the Fourth Proportional to 279,951.58, 419,730.48 and 130,032.70

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Solution

The fourth proportional to 279,951.58, 419,730.48 and 130,032.70 is: 194,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,951.58 : 419,730.48 = 130,032.70 : x
  2. Step 2: Convert to fraction form
    279,951.58/419,730.48 = 130,032.70/x
  3. Step 3: Cross multiply
    279,951.58x = 419,730.48 × 130,032.70
  4. Step 4: Simplify right side
    279,951.58x = 54,578,687,586.70
  5. Step 5: Solve for x
    x = 54,578,687,586.70/279,951.58
  6. Step 6: Final answer
    x = 194,957.60

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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.