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Finding the Fourth Proportional to 280,231.56, 386,719.56 and 179,629.56

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Solution

The fourth proportional to 280,231.56, 386,719.56 and 179,629.56 is: 247,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,231.56 : 386,719.56 = 179,629.56 : x
  2. Step 2: Convert to fraction form
    280,231.56/386,719.56 = 179,629.56/x
  3. Step 3: Cross multiply
    280,231.56x = 386,719.56 × 179,629.56
  4. Step 4: Simplify right side
    280,231.56x = 69,466,264,406.19
  5. Step 5: Solve for x
    x = 69,466,264,406.19/280,231.56
  6. Step 6: Final answer
    x = 247,888.80

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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.