Home / 257,381.90-355,187.07-144,205.58

Finding the Fourth Proportional to 257,381.90, 355,187.07 and 144,205.58

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Solution

The fourth proportional to 257,381.90, 355,187.07 and 144,205.58 is: 199,003.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,381.90 : 355,187.07 = 144,205.58 : x
  2. Step 2: Convert to fraction form
    257,381.90/355,187.07 = 144,205.58/x
  3. Step 3: Cross multiply
    257,381.90x = 355,187.07 × 144,205.58
  4. Step 4: Simplify right side
    257,381.90x = 51,219,957,437.85
  5. Step 5: Solve for x
    x = 51,219,957,437.85/257,381.90
  6. Step 6: Final answer
    x = 199,003.73

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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.