Home / 305,270.39-457,975.34-105,590.61

Finding the Fourth Proportional to 305,270.39, 457,975.34 and 105,590.61

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Solution

The fourth proportional to 305,270.39, 457,975.34 and 105,590.61 is: 158,410.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,270.39 : 457,975.34 = 105,590.61 : x
  2. Step 2: Convert to fraction form
    305,270.39/457,975.34 = 105,590.61/x
  3. Step 3: Cross multiply
    305,270.39x = 457,975.34 × 105,590.61
  4. Step 4: Simplify right side
    305,270.39x = 48,357,895,515.56
  5. Step 5: Solve for x
    x = 48,357,895,515.56/305,270.39
  6. Step 6: Final answer
    x = 158,410.04

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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.