Home / 266,390-367,612.14-145,531.80

Finding the Fourth Proportional to 266,390, 367,612.14 and 145,531.80

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Solution

The fourth proportional to 266,390, 367,612.14 and 145,531.80 is: 200,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,390 : 367,612.14 = 145,531.80 : x
  2. Step 2: Convert to fraction form
    266,390/367,612.14 = 145,531.80/x
  3. Step 3: Cross multiply
    266,390x = 367,612.14 × 145,531.80
  4. Step 4: Simplify right side
    266,390x = 53,499,256,436.05
  5. Step 5: Solve for x
    x = 53,499,256,436.05/266,390
  6. Step 6: Final answer
    x = 200,830.57

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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.