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Finding the Fourth Proportional to 247,979.57, 342,274.56 and 152,571.69

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Solution

The fourth proportional to 247,979.57, 342,274.56 and 152,571.69 is: 210,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,979.57 : 342,274.56 = 152,571.69 : x
  2. Step 2: Convert to fraction form
    247,979.57/342,274.56 = 152,571.69/x
  3. Step 3: Cross multiply
    247,979.57x = 342,274.56 × 152,571.69
  4. Step 4: Simplify right side
    247,979.57x = 52,221,408,063.21
  5. Step 5: Solve for x
    x = 52,221,408,063.21/247,979.57
  6. Step 6: Final answer
    x = 210,587.55

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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.