Home / 257,619.98-355,448.31-148,697.66

Finding the Fourth Proportional to 257,619.98, 355,448.31 and 148,697.66

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Solution

The fourth proportional to 257,619.98, 355,448.31 and 148,697.66 is: 205,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,619.98 : 355,448.31 = 148,697.66 : x
  2. Step 2: Convert to fraction form
    257,619.98/355,448.31 = 148,697.66/x
  3. Step 3: Cross multiply
    257,619.98x = 355,448.31 × 148,697.66
  4. Step 4: Simplify right side
    257,619.98x = 52,854,331,947.95
  5. Step 5: Solve for x
    x = 52,854,331,947.95/257,619.98
  6. Step 6: Final answer
    x = 205,163.95

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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.