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Finding the Fourth Proportional to 361,353.40, 542,030.10 and 347,575.30

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Solution

The fourth proportional to 361,353.40, 542,030.10 and 347,575.30 is: 521,362.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,353.40 : 542,030.10 = 347,575.30 : x
  2. Step 2: Convert to fraction form
    361,353.40/542,030.10 = 347,575.30/x
  3. Step 3: Cross multiply
    361,353.40x = 542,030.10 × 347,575.30
  4. Step 4: Simplify right side
    361,353.40x = 188,396,274,616.53
  5. Step 5: Solve for x
    x = 188,396,274,616.53/361,353.40
  6. Step 6: Final answer
    x = 521,362.95

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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.