Home / 305,546.50-458,332.17-145,540.18

Finding the Fourth Proportional to 305,546.50, 458,332.17 and 145,540.18

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Solution

The fourth proportional to 305,546.50, 458,332.17 and 145,540.18 is: 218,316.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,546.50 : 458,332.17 = 145,540.18 : x
  2. Step 2: Convert to fraction form
    305,546.50/458,332.17 = 145,540.18/x
  3. Step 3: Cross multiply
    305,546.50x = 458,332.17 × 145,540.18
  4. Step 4: Simplify right side
    305,546.50x = 66,705,746,521.59
  5. Step 5: Solve for x
    x = 66,705,746,521.59/305,546.50
  6. Step 6: Final answer
    x = 218,316.19

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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.