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Finding the Fourth Proportional to 247,281.57, 341,244.54 and 139,847.58

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Solution

The fourth proportional to 247,281.57, 341,244.54 and 139,847.58 is: 192,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,281.57 : 341,244.54 = 139,847.58 : x
  2. Step 2: Convert to fraction form
    247,281.57/341,244.54 = 139,847.58/x
  3. Step 3: Cross multiply
    247,281.57x = 341,244.54 × 139,847.58
  4. Step 4: Simplify right side
    247,281.57x = 47,722,223,107.21
  5. Step 5: Solve for x
    x = 47,722,223,107.21/247,281.57
  6. Step 6: Final answer
    x = 192,987.38

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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.