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Finding the Fourth Proportional to 247,498.20, 371,393.10 and 163,501.20

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Solution

The fourth proportional to 247,498.20, 371,393.10 and 163,501.20 is: 245,348.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,498.20 : 371,393.10 = 163,501.20 : x
  2. Step 2: Convert to fraction form
    247,498.20/371,393.10 = 163,501.20/x
  3. Step 3: Cross multiply
    247,498.20x = 371,393.10 × 163,501.20
  4. Step 4: Simplify right side
    247,498.20x = 60,723,217,521.72
  5. Step 5: Solve for x
    x = 60,723,217,521.72/247,498.20
  6. Step 6: Final answer
    x = 245,348.12

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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.