Home / 382,052.40-527,209.20-212,280.72

Finding the Fourth Proportional to 382,052.40, 527,209.20 and 212,280.72

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Solution

The fourth proportional to 382,052.40, 527,209.20 and 212,280.72 is: 292,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,052.40 : 527,209.20 = 212,280.72 : x
  2. Step 2: Convert to fraction form
    382,052.40/527,209.20 = 212,280.72/x
  3. Step 3: Cross multiply
    382,052.40x = 527,209.20 × 212,280.72
  4. Step 4: Simplify right side
    382,052.40x = 111,916,348,566.62
  5. Step 5: Solve for x
    x = 111,916,348,566.62/382,052.40
  6. Step 6: Final answer
    x = 292,934.55

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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.