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Finding the Fourth Proportional to 288,776.29, 398,351.29 and 167,904.22

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Solution

The fourth proportional to 288,776.29, 398,351.29 and 167,904.22 is: 231,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,776.29 : 398,351.29 = 167,904.22 : x
  2. Step 2: Convert to fraction form
    288,776.29/398,351.29 = 167,904.22/x
  3. Step 3: Cross multiply
    288,776.29x = 398,351.29 × 167,904.22
  4. Step 4: Simplify right side
    288,776.29x = 66,884,862,633.44
  5. Step 5: Solve for x
    x = 66,884,862,633.44/288,776.29
  6. Step 6: Final answer
    x = 231,614.80

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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.