Home / 305,565.75-458,360.91-145,559.43

Finding the Fourth Proportional to 305,565.75, 458,360.91 and 145,559.43

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Solution

The fourth proportional to 305,565.75, 458,360.91 and 145,559.43 is: 218,345.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,565.75 : 458,360.91 = 145,559.43 : x
  2. Step 2: Convert to fraction form
    305,565.75/458,360.91 = 145,559.43/x
  3. Step 3: Cross multiply
    305,565.75x = 458,360.91 × 145,559.43
  4. Step 4: Simplify right side
    305,565.75x = 66,718,752,793.88
  5. Step 5: Solve for x
    x = 66,718,752,793.88/305,565.75
  6. Step 6: Final answer
    x = 218,345.00

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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.