Home / 266,684.20-399,995.51-66,989.39

Finding the Fourth Proportional to 266,684.20, 399,995.51 and 66,989.39

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Solution

The fourth proportional to 266,684.20, 399,995.51 and 66,989.39 is: 100,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,684.20 : 399,995.51 = 66,989.39 : x
  2. Step 2: Convert to fraction form
    266,684.20/399,995.51 = 66,989.39/x
  3. Step 3: Cross multiply
    266,684.20x = 399,995.51 × 66,989.39
  4. Step 4: Simplify right side
    266,684.20x = 26,795,452,882.71
  5. Step 5: Solve for x
    x = 26,795,452,882.71/266,684.20
  6. Step 6: Final answer
    x = 100,476.34

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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.