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Finding the Fourth Proportional to 250,228.97, 345,340.80 and 142,815.27

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Solution

The fourth proportional to 250,228.97, 345,340.80 and 142,815.27 is: 197,099.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,228.97 : 345,340.80 = 142,815.27 : x
  2. Step 2: Convert to fraction form
    250,228.97/345,340.80 = 142,815.27/x
  3. Step 3: Cross multiply
    250,228.97x = 345,340.80 × 142,815.27
  4. Step 4: Simplify right side
    250,228.97x = 49,319,939,594.02
  5. Step 5: Solve for x
    x = 49,319,939,594.02/250,228.97
  6. Step 6: Final answer
    x = 197,099.24

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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.