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Finding the Fourth Proportional to 221,482.40, 332,223.60 and 103,165.70

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Solution

The fourth proportional to 221,482.40, 332,223.60 and 103,165.70 is: 154,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,482.40 : 332,223.60 = 103,165.70 : x
  2. Step 2: Convert to fraction form
    221,482.40/332,223.60 = 103,165.70/x
  3. Step 3: Cross multiply
    221,482.40x = 332,223.60 × 103,165.70
  4. Step 4: Simplify right side
    221,482.40x = 34,274,080,250.52
  5. Step 5: Solve for x
    x = 34,274,080,250.52/221,482.40
  6. Step 6: Final answer
    x = 154,748.55

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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.