Home / 330,789.56-496,050.71-128,279.03

Finding the Fourth Proportional to 330,789.56, 496,050.71 and 128,279.03

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Solution

The fourth proportional to 330,789.56, 496,050.71 and 128,279.03 is: 192,366.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,789.56 : 496,050.71 = 128,279.03 : x
  2. Step 2: Convert to fraction form
    330,789.56/496,050.71 = 128,279.03/x
  3. Step 3: Cross multiply
    330,789.56x = 496,050.71 × 128,279.03
  4. Step 4: Simplify right side
    330,789.56x = 63,632,900,787.96
  5. Step 5: Solve for x
    x = 63,632,900,787.96/330,789.56
  6. Step 6: Final answer
    x = 192,366.72

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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.