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Finding the Fourth Proportional to 247,995.36, 342,234 and 134,818.20

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Solution

The fourth proportional to 247,995.36, 342,234 and 134,818.20 is: 186,049.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,995.36 : 342,234 = 134,818.20 : x
  2. Step 2: Convert to fraction form
    247,995.36/342,234 = 134,818.20/x
  3. Step 3: Cross multiply
    247,995.36x = 342,234 × 134,818.20
  4. Step 4: Simplify right side
    247,995.36x = 46,139,371,858.80
  5. Step 5: Solve for x
    x = 46,139,371,858.80/247,995.36
  6. Step 6: Final answer
    x = 186,049.34

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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.