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Finding the Fourth Proportional to 360,258.68, 540,482.67 and 129,470.97

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Solution

The fourth proportional to 360,258.68, 540,482.67 and 129,470.97 is: 194,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,258.68 : 540,482.67 = 129,470.97 : x
  2. Step 2: Convert to fraction form
    360,258.68/540,482.67 = 129,470.97/x
  3. Step 3: Cross multiply
    360,258.68x = 540,482.67 × 129,470.97
  4. Step 4: Simplify right side
    360,258.68x = 69,976,814,905.74
  5. Step 5: Solve for x
    x = 69,976,814,905.74/360,258.68
  6. Step 6: Final answer
    x = 194,240.47

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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.