Home / 330,446.20-495,390.66-143,316.76

Finding the Fourth Proportional to 330,446.20, 495,390.66 and 143,316.76

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Solution

The fourth proportional to 330,446.20, 495,390.66 and 143,316.76 is: 214,854.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,446.20 : 495,390.66 = 143,316.76 : x
  2. Step 2: Convert to fraction form
    330,446.20/495,390.66 = 143,316.76/x
  3. Step 3: Cross multiply
    330,446.20x = 495,390.66 × 143,316.76
  4. Step 4: Simplify right side
    330,446.20x = 70,997,784,325.46
  5. Step 5: Solve for x
    x = 70,997,784,325.46/330,446.20
  6. Step 6: Final answer
    x = 214,854.29

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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.