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Finding the Fourth Proportional to 288,996.32, 398,820.66 and 174,274.40

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Solution

The fourth proportional to 288,996.32, 398,820.66 and 174,274.40 is: 240,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,996.32 : 398,820.66 = 174,274.40 : x
  2. Step 2: Convert to fraction form
    288,996.32/398,820.66 = 174,274.40/x
  3. Step 3: Cross multiply
    288,996.32x = 398,820.66 × 174,274.40
  4. Step 4: Simplify right side
    288,996.32x = 69,504,231,229.10
  5. Step 5: Solve for x
    x = 69,504,231,229.10/288,996.32
  6. Step 6: Final answer
    x = 240,502.13

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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.