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Finding the Fourth Proportional to 360,258.43, 540,482.29 and 129,470.72

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Solution

The fourth proportional to 360,258.43, 540,482.29 and 129,470.72 is: 194,240.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,258.43 : 540,482.29 = 129,470.72 : x
  2. Step 2: Convert to fraction form
    360,258.43/540,482.29 = 129,470.72/x
  3. Step 3: Cross multiply
    360,258.43x = 540,482.29 × 129,470.72
  4. Step 4: Simplify right side
    360,258.43x = 69,976,631,233.55
  5. Step 5: Solve for x
    x = 69,976,631,233.55/360,258.43
  6. Step 6: Final answer
    x = 194,240.09

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1.5x scale

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.