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Finding the Fourth Proportional to 247,885.79, 342,085.12 and 134,708.54

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Solution

The fourth proportional to 247,885.79, 342,085.12 and 134,708.54 is: 185,899.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,885.79 : 342,085.12 = 134,708.54 : x
  2. Step 2: Convert to fraction form
    247,885.79/342,085.12 = 134,708.54/x
  3. Step 3: Cross multiply
    247,885.79x = 342,085.12 × 134,708.54
  4. Step 4: Simplify right side
    247,885.79x = 46,081,787,589.37
  5. Step 5: Solve for x
    x = 46,081,787,589.37/247,885.79
  6. Step 6: Final answer
    x = 185,899.27

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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.