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Finding the Fourth Proportional to 266,752.26, 400,410.33 and 260,728.56

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Solution

The fourth proportional to 266,752.26, 400,410.33 and 260,728.56 is: 391,368.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,752.26 : 400,410.33 = 260,728.56 : x
  2. Step 2: Convert to fraction form
    266,752.26/400,410.33 = 260,728.56/x
  3. Step 3: Cross multiply
    266,752.26x = 400,410.33 × 260,728.56
  4. Step 4: Simplify right side
    266,752.26x = 104,398,408,750.03
  5. Step 5: Solve for x
    x = 104,398,408,750.03/266,752.26
  6. Step 6: Final answer
    x = 391,368.41

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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.