Home / 324,821.45-487,330.59-147,280.79

Finding the Fourth Proportional to 324,821.45, 487,330.59 and 147,280.79

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Solution

The fourth proportional to 324,821.45, 487,330.59 and 147,280.79 is: 220,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,821.45 : 487,330.59 = 147,280.79 : x
  2. Step 2: Convert to fraction form
    324,821.45/487,330.59 = 147,280.79/x
  3. Step 3: Cross multiply
    324,821.45x = 487,330.59 × 147,280.79
  4. Step 4: Simplify right side
    324,821.45x = 71,774,431,849.71
  5. Step 5: Solve for x
    x = 71,774,431,849.71/324,821.45
  6. Step 6: Final answer
    x = 220,965.80

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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.