Home / 257,337.25-355,040.33-155,323.95

Finding the Fourth Proportional to 257,337.25, 355,040.33 and 155,323.95

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Solution

The fourth proportional to 257,337.25, 355,040.33 and 155,323.95 is: 214,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,337.25 : 355,040.33 = 155,323.95 : x
  2. Step 2: Convert to fraction form
    257,337.25/355,040.33 = 155,323.95/x
  3. Step 3: Cross multiply
    257,337.25x = 355,040.33 × 155,323.95
  4. Step 4: Simplify right side
    257,337.25x = 55,146,266,464.90
  5. Step 5: Solve for x
    x = 55,146,266,464.90/257,337.25
  6. Step 6: Final answer
    x = 214,295.70

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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.