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Finding the Fourth Proportional to 417,608.56, 576,301.32 and 226,621.90

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Solution

The fourth proportional to 417,608.56, 576,301.32 and 226,621.90 is: 312,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,608.56 : 576,301.32 = 226,621.90 : x
  2. Step 2: Convert to fraction form
    417,608.56/576,301.32 = 226,621.90/x
  3. Step 3: Cross multiply
    417,608.56x = 576,301.32 × 226,621.90
  4. Step 4: Simplify right side
    417,608.56x = 130,602,500,110.91
  5. Step 5: Solve for x
    x = 130,602,500,110.91/417,608.56
  6. Step 6: Final answer
    x = 312,739.04

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1.5x scale

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.