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Finding the Fourth Proportional to 361,573.31, 542,365.44 and 136,873.42

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Solution

The fourth proportional to 361,573.31, 542,365.44 and 136,873.42 is: 205,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,573.31 : 542,365.44 = 136,873.42 : x
  2. Step 2: Convert to fraction form
    361,573.31/542,365.44 = 136,873.42/x
  3. Step 3: Cross multiply
    361,573.31x = 542,365.44 × 136,873.42
  4. Step 4: Simplify right side
    361,573.31x = 74,235,411,306.69
  5. Step 5: Solve for x
    x = 74,235,411,306.69/361,573.31
  6. Step 6: Final answer
    x = 205,312.20

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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.