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Finding the Fourth Proportional to 276,007.10, 414,010.65 and 258,511.10

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Solution

The fourth proportional to 276,007.10, 414,010.65 and 258,511.10 is: 387,766.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,007.10 : 414,010.65 = 258,511.10 : x
  2. Step 2: Convert to fraction form
    276,007.10/414,010.65 = 258,511.10/x
  3. Step 3: Cross multiply
    276,007.10x = 414,010.65 × 258,511.10
  4. Step 4: Simplify right side
    276,007.10x = 107,026,348,543.22
  5. Step 5: Solve for x
    x = 107,026,348,543.22/276,007.10
  6. Step 6: Final answer
    x = 387,766.65

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Similar ratio
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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.