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Finding the Fourth Proportional to 291,879.54, 402,724.89 and 177,155.46

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Solution

The fourth proportional to 291,879.54, 402,724.89 and 177,155.46 is: 244,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,879.54 : 402,724.89 = 177,155.46 : x
  2. Step 2: Convert to fraction form
    291,879.54/402,724.89 = 177,155.46/x
  3. Step 3: Cross multiply
    291,879.54x = 402,724.89 × 177,155.46
  4. Step 4: Simplify right side
    291,879.54x = 71,344,913,141.40
  5. Step 5: Solve for x
    x = 71,344,913,141.40/291,879.54
  6. Step 6: Final answer
    x = 244,432.73

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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.