Home / 257,489.12-355,371.76-142,793.27

Finding the Fourth Proportional to 257,489.12, 355,371.76 and 142,793.27

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Solution

The fourth proportional to 257,489.12, 355,371.76 and 142,793.27 is: 197,075.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,489.12 : 355,371.76 = 142,793.27 : x
  2. Step 2: Convert to fraction form
    257,489.12/355,371.76 = 142,793.27/x
  3. Step 3: Cross multiply
    257,489.12x = 355,371.76 × 142,793.27
  4. Step 4: Simplify right side
    257,489.12x = 50,744,696,409.82
  5. Step 5: Solve for x
    x = 50,744,696,409.82/257,489.12
  6. Step 6: Final answer
    x = 197,075.11

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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.