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Finding the Fourth Proportional to 356,373.60, 533,869.20 and 198,319.20

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Solution

The fourth proportional to 356,373.60, 533,869.20 and 198,319.20 is: 297,094.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,373.60 : 533,869.20 = 198,319.20 : x
  2. Step 2: Convert to fraction form
    356,373.60/533,869.20 = 198,319.20/x
  3. Step 3: Cross multiply
    356,373.60x = 533,869.20 × 198,319.20
  4. Step 4: Simplify right side
    356,373.60x = 105,876,512,648.64
  5. Step 5: Solve for x
    x = 105,876,512,648.64/356,373.60
  6. Step 6: Final answer
    x = 297,094.15

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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.