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Finding the Fourth Proportional to 303,139.60, 454,053.30 and 162,734.20

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Solution

The fourth proportional to 303,139.60, 454,053.30 and 162,734.20 is: 243,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,139.60 : 454,053.30 = 162,734.20 : x
  2. Step 2: Convert to fraction form
    303,139.60/454,053.30 = 162,734.20/x
  3. Step 3: Cross multiply
    303,139.60x = 454,053.30 × 162,734.20
  4. Step 4: Simplify right side
    303,139.60x = 73,890,000,532.86
  5. Step 5: Solve for x
    x = 73,890,000,532.86/303,139.60
  6. Step 6: Final answer
    x = 243,749.09

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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.