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Finding the Fourth Proportional to 247,155.99, 341,080.52 and 139,719.62

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Solution

The fourth proportional to 247,155.99, 341,080.52 and 139,719.62 is: 192,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,155.99 : 341,080.52 = 139,719.62 : x
  2. Step 2: Convert to fraction form
    247,155.99/341,080.52 = 139,719.62/x
  3. Step 3: Cross multiply
    247,155.99x = 341,080.52 × 139,719.62
  4. Step 4: Simplify right side
    247,155.99x = 47,655,638,239.80
  5. Step 5: Solve for x
    x = 47,655,638,239.80/247,155.99
  6. Step 6: Final answer
    x = 192,816.04

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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.