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Finding the Fourth Proportional to 322,904.70, 484,126.65 and 145,266.30

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Solution

The fourth proportional to 322,904.70, 484,126.65 and 145,266.30 is: 217,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,904.70 : 484,126.65 = 145,266.30 : x
  2. Step 2: Convert to fraction form
    322,904.70/484,126.65 = 145,266.30/x
  3. Step 3: Cross multiply
    322,904.70x = 484,126.65 × 145,266.30
  4. Step 4: Simplify right side
    322,904.70x = 70,327,287,176.90
  5. Step 5: Solve for x
    x = 70,327,287,176.90/322,904.70
  6. Step 6: Final answer
    x = 217,795.80

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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.