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Finding the Fourth Proportional to 221,675.40, 332,513.10 and 103,358.70

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Solution

The fourth proportional to 221,675.40, 332,513.10 and 103,358.70 is: 155,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,675.40 : 332,513.10 = 103,358.70 : x
  2. Step 2: Convert to fraction form
    221,675.40/332,513.10 = 103,358.70/x
  3. Step 3: Cross multiply
    221,675.40x = 332,513.10 × 103,358.70
  4. Step 4: Simplify right side
    221,675.40x = 34,368,121,748.97
  5. Step 5: Solve for x
    x = 34,368,121,748.97/221,675.40
  6. Step 6: Final answer
    x = 155,038.05

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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.