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Finding the Fourth Proportional to 329,702.40, 454,985.10 and 178,799.40

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Solution

The fourth proportional to 329,702.40, 454,985.10 and 178,799.40 is: 246,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,702.40 : 454,985.10 = 178,799.40 : x
  2. Step 2: Convert to fraction form
    329,702.40/454,985.10 = 178,799.40/x
  3. Step 3: Cross multiply
    329,702.40x = 454,985.10 × 178,799.40
  4. Step 4: Simplify right side
    329,702.40x = 81,351,062,888.94
  5. Step 5: Solve for x
    x = 81,351,062,888.94/329,702.40
  6. Step 6: Final answer
    x = 246,740.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.