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Finding the Fourth Proportional to 221,451.40, 332,177.10 and 162,402.40

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Solution

The fourth proportional to 221,451.40, 332,177.10 and 162,402.40 is: 243,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,451.40 : 332,177.10 = 162,402.40 : x
  2. Step 2: Convert to fraction form
    221,451.40/332,177.10 = 162,402.40/x
  3. Step 3: Cross multiply
    221,451.40x = 332,177.10 × 162,402.40
  4. Step 4: Simplify right side
    221,451.40x = 53,946,358,265.04
  5. Step 5: Solve for x
    x = 53,946,358,265.04/221,451.40
  6. Step 6: Final answer
    x = 243,603.60

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1.5x scale

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.