Home / 264,278.40-396,527.04-145,939.20

Finding the Fourth Proportional to 264,278.40, 396,527.04 and 145,939.20

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Solution

The fourth proportional to 264,278.40, 396,527.04 and 145,939.20 is: 218,969.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,278.40 : 396,527.04 = 145,939.20 : x
  2. Step 2: Convert to fraction form
    264,278.40/396,527.04 = 145,939.20/x
  3. Step 3: Cross multiply
    264,278.40x = 396,527.04 × 145,939.20
  4. Step 4: Simplify right side
    264,278.40x = 57,868,838,995.97
  5. Step 5: Solve for x
    x = 57,868,838,995.97/264,278.40
  6. Step 6: Final answer
    x = 218,969.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.