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Finding the Fourth Proportional to 247,283.57, 341,247.30 and 139,849.58

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Solution

The fourth proportional to 247,283.57, 341,247.30 and 139,849.58 is: 192,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,283.57 : 341,247.30 = 139,849.58 : x
  2. Step 2: Convert to fraction form
    247,283.57/341,247.30 = 139,849.58/x
  3. Step 3: Cross multiply
    247,283.57x = 341,247.30 × 139,849.58
  4. Step 4: Simplify right side
    247,283.57x = 47,723,291,581.13
  5. Step 5: Solve for x
    x = 47,723,291,581.13/247,283.57
  6. Step 6: Final answer
    x = 192,990.14

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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.