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Finding the Fourth Proportional to 499,200.80, 748,801.20 and 219,264.80

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Solution

The fourth proportional to 499,200.80, 748,801.20 and 219,264.80 is: 328,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,200.80 : 748,801.20 = 219,264.80 : x
  2. Step 2: Convert to fraction form
    499,200.80/748,801.20 = 219,264.80/x
  3. Step 3: Cross multiply
    499,200.80x = 748,801.20 × 219,264.80
  4. Step 4: Simplify right side
    499,200.80x = 164,185,745,357.76
  5. Step 5: Solve for x
    x = 164,185,745,357.76/499,200.80
  6. Step 6: Final answer
    x = 328,897.20

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1.5x scale

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.