Home / 266,081.51-398,910.30-153,634.20

Finding the Fourth Proportional to 266,081.51, 398,910.30 and 153,634.20

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Solution

The fourth proportional to 266,081.51, 398,910.30 and 153,634.20 is: 230,328.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,081.51 : 398,910.30 = 153,634.20 : x
  2. Step 2: Convert to fraction form
    266,081.51/398,910.30 = 153,634.20/x
  3. Step 3: Cross multiply
    266,081.51x = 398,910.30 × 153,634.20
  4. Step 4: Simplify right side
    266,081.51x = 61,286,264,812.26
  5. Step 5: Solve for x
    x = 61,286,264,812.26/266,081.51
  6. Step 6: Final answer
    x = 230,328.92

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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.