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Finding the Fourth Proportional to 266,164.40, 367,312.44 and 145,310.78

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Solution

The fourth proportional to 266,164.40, 367,312.44 and 145,310.78 is: 200,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,164.40 : 367,312.44 = 145,310.78 : x
  2. Step 2: Convert to fraction form
    266,164.40/367,312.44 = 145,310.78/x
  3. Step 3: Cross multiply
    266,164.40x = 367,312.44 × 145,310.78
  4. Step 4: Simplify right side
    266,164.40x = 53,374,456,433.55
  5. Step 5: Solve for x
    x = 53,374,456,433.55/266,164.40
  6. Step 6: Final answer
    x = 200,531.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.