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Finding the Fourth Proportional to 368,304.30, 552,456.45 and 318,440.70

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Solution

The fourth proportional to 368,304.30, 552,456.45 and 318,440.70 is: 477,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,304.30 : 552,456.45 = 318,440.70 : x
  2. Step 2: Convert to fraction form
    368,304.30/552,456.45 = 318,440.70/x
  3. Step 3: Cross multiply
    368,304.30x = 552,456.45 × 318,440.70
  4. Step 4: Simplify right side
    368,304.30x = 175,924,618,657.52
  5. Step 5: Solve for x
    x = 175,924,618,657.52/368,304.30
  6. Step 6: Final answer
    x = 477,661.05

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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.