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Finding the Fourth Proportional to 398,707.08, 550,229.56 and 226,632.25

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Solution

The fourth proportional to 398,707.08, 550,229.56 and 226,632.25 is: 312,760.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,707.08 : 550,229.56 = 226,632.25 : x
  2. Step 2: Convert to fraction form
    398,707.08/550,229.56 = 226,632.25/x
  3. Step 3: Cross multiply
    398,707.08x = 550,229.56 × 226,632.25
  4. Step 4: Simplify right side
    398,707.08x = 124,699,760,225.48
  5. Step 5: Solve for x
    x = 124,699,760,225.48/398,707.08
  6. Step 6: Final answer
    x = 312,760.34

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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.