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Finding the Fourth Proportional to 658,503.40, 987,798.30 and 185,204.20

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Solution

The fourth proportional to 658,503.40, 987,798.30 and 185,204.20 is: 277,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,503.40 : 987,798.30 = 185,204.20 : x
  2. Step 2: Convert to fraction form
    658,503.40/987,798.30 = 185,204.20/x
  3. Step 3: Cross multiply
    658,503.40x = 987,798.30 × 185,204.20
  4. Step 4: Simplify right side
    658,503.40x = 182,944,393,912.86
  5. Step 5: Solve for x
    x = 182,944,393,912.86/658,503.40
  6. Step 6: Final answer
    x = 277,818.45

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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.