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Finding the Fourth Proportional to 266,427.20, 366,921.12 and 260,621.12

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Solution

The fourth proportional to 266,427.20, 366,921.12 and 260,621.12 is: 358,925.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,427.20 : 366,921.12 = 260,621.12 : x
  2. Step 2: Convert to fraction form
    266,427.20/366,921.12 = 260,621.12/x
  3. Step 3: Cross multiply
    266,427.20x = 366,921.12 × 260,621.12
  4. Step 4: Simplify right side
    266,427.20x = 95,627,393,246.05
  5. Step 5: Solve for x
    x = 95,627,393,246.05/266,427.20
  6. Step 6: Final answer
    x = 358,925.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.