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Finding the Fourth Proportional to 554,002.30, 831,262.65 and 238,728.70

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Solution

The fourth proportional to 554,002.30, 831,262.65 and 238,728.70 is: 358,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,002.30 : 831,262.65 = 238,728.70 : x
  2. Step 2: Convert to fraction form
    554,002.30/831,262.65 = 238,728.70/x
  3. Step 3: Cross multiply
    554,002.30x = 831,262.65 × 238,728.70
  4. Step 4: Simplify right side
    554,002.30x = 198,446,251,793.06
  5. Step 5: Solve for x
    x = 198,446,251,793.06/554,002.30
  6. Step 6: Final answer
    x = 358,204.74

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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.