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Finding the Fourth Proportional to 247,613.76, 341,707.68 and 134,438.40

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Solution

The fourth proportional to 247,613.76, 341,707.68 and 134,438.40 is: 185,525.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,613.76 : 341,707.68 = 134,438.40 : x
  2. Step 2: Convert to fraction form
    247,613.76/341,707.68 = 134,438.40/x
  3. Step 3: Cross multiply
    247,613.76x = 341,707.68 × 134,438.40
  4. Step 4: Simplify right side
    247,613.76x = 45,938,633,766.91
  5. Step 5: Solve for x
    x = 45,938,633,766.91/247,613.76
  6. Step 6: Final answer
    x = 185,525.37

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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.