Home / 250,269.35-345,287.21-142,763.72

Finding the Fourth Proportional to 250,269.35, 345,287.21 and 142,763.72

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Solution

The fourth proportional to 250,269.35, 345,287.21 and 142,763.72 is: 196,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,269.35 : 345,287.21 = 142,763.72 : x
  2. Step 2: Convert to fraction form
    250,269.35/345,287.21 = 142,763.72/x
  3. Step 3: Cross multiply
    250,269.35x = 345,287.21 × 142,763.72
  4. Step 4: Simplify right side
    250,269.35x = 49,294,484,127.77
  5. Step 5: Solve for x
    x = 49,294,484,127.77/250,269.35
  6. Step 6: Final answer
    x = 196,965.73

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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.