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Finding the Fourth Proportional to 269,697.40, 404,546.10 and 145,281.40

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Solution

The fourth proportional to 269,697.40, 404,546.10 and 145,281.40 is: 217,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,697.40 : 404,546.10 = 145,281.40 : x
  2. Step 2: Convert to fraction form
    269,697.40/404,546.10 = 145,281.40/x
  3. Step 3: Cross multiply
    269,697.40x = 404,546.10 × 145,281.40
  4. Step 4: Simplify right side
    269,697.40x = 58,773,023,772.54
  5. Step 5: Solve for x
    x = 58,773,023,772.54/269,697.40
  6. Step 6: Final answer
    x = 217,922.10

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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.