Home / 361,904.20-542,856.30-272,091.40

Finding the Fourth Proportional to 361,904.20, 542,856.30 and 272,091.40

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Solution

The fourth proportional to 361,904.20, 542,856.30 and 272,091.40 is: 408,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,904.20 : 542,856.30 = 272,091.40 : x
  2. Step 2: Convert to fraction form
    361,904.20/542,856.30 = 272,091.40/x
  3. Step 3: Cross multiply
    361,904.20x = 542,856.30 × 272,091.40
  4. Step 4: Simplify right side
    361,904.20x = 147,706,530,665.82
  5. Step 5: Solve for x
    x = 147,706,530,665.82/361,904.20
  6. Step 6: Final answer
    x = 408,137.10

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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.