Home / 257,189.24-354,923.70-142,471.28

Finding the Fourth Proportional to 257,189.24, 354,923.70 and 142,471.28

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Solution

The fourth proportional to 257,189.24, 354,923.70 and 142,471.28 is: 196,611.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,189.24 : 354,923.70 = 142,471.28 : x
  2. Step 2: Convert to fraction form
    257,189.24/354,923.70 = 142,471.28/x
  3. Step 3: Cross multiply
    257,189.24x = 354,923.70 × 142,471.28
  4. Step 4: Simplify right side
    257,189.24x = 50,566,433,841.34
  5. Step 5: Solve for x
    x = 50,566,433,841.34/257,189.24
  6. Step 6: Final answer
    x = 196,611.78

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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.