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Finding the Fourth Proportional to 390,702.88, 585,937.68 and 166,062.34

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Solution

The fourth proportional to 390,702.88, 585,937.68 and 166,062.34 is: 249,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,702.88 : 585,937.68 = 166,062.34 : x
  2. Step 2: Convert to fraction form
    390,702.88/585,937.68 = 166,062.34/x
  3. Step 3: Cross multiply
    390,702.88x = 585,937.68 × 166,062.34
  4. Step 4: Simplify right side
    390,702.88x = 97,302,182,234.97
  5. Step 5: Solve for x
    x = 97,302,182,234.97/390,702.88
  6. Step 6: Final answer
    x = 249,043.93

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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.