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Finding the Fourth Proportional to 266,119.65, 399,243.26 and 88,628.20

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Solution

The fourth proportional to 266,119.65, 399,243.26 and 88,628.20 is: 132,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,119.65 : 399,243.26 = 88,628.20 : x
  2. Step 2: Convert to fraction form
    266,119.65/399,243.26 = 88,628.20/x
  3. Step 3: Cross multiply
    266,119.65x = 399,243.26 × 88,628.20
  4. Step 4: Simplify right side
    266,119.65x = 35,384,210,719.39
  5. Step 5: Solve for x
    x = 35,384,210,719.39/266,119.65
  6. Step 6: Final answer
    x = 132,963.54

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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.