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Finding the Fourth Proportional to 247,990.72, 342,230.88 and 134,813.56

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Solution

The fourth proportional to 247,990.72, 342,230.88 and 134,813.56 is: 186,044.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,990.72 : 342,230.88 = 134,813.56 : x
  2. Step 2: Convert to fraction form
    247,990.72/342,230.88 = 134,813.56/x
  3. Step 3: Cross multiply
    247,990.72x = 342,230.88 × 134,813.56
  4. Step 4: Simplify right side
    247,990.72x = 46,137,363,274.73
  5. Step 5: Solve for x
    x = 46,137,363,274.73/247,990.72
  6. Step 6: Final answer
    x = 186,044.72

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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.