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Finding the Fourth Proportional to 315,049.65, 434,794.33 and 179,126.25

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Solution

The fourth proportional to 315,049.65, 434,794.33 and 179,126.25 is: 247,208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,049.65 : 434,794.33 = 179,126.25 : x
  2. Step 2: Convert to fraction form
    315,049.65/434,794.33 = 179,126.25/x
  3. Step 3: Cross multiply
    315,049.65x = 434,794.33 × 179,126.25
  4. Step 4: Simplify right side
    315,049.65x = 77,883,077,854.16
  5. Step 5: Solve for x
    x = 77,883,077,854.16/315,049.65
  6. Step 6: Final answer
    x = 247,208.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.