Home / 257,323.14-355,105.98-144,148.32

Finding the Fourth Proportional to 257,323.14, 355,105.98 and 144,148.32

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Solution

The fourth proportional to 257,323.14, 355,105.98 and 144,148.32 is: 198,924.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,323.14 : 355,105.98 = 144,148.32 : x
  2. Step 2: Convert to fraction form
    257,323.14/355,105.98 = 144,148.32/x
  3. Step 3: Cross multiply
    257,323.14x = 355,105.98 × 144,148.32
  4. Step 4: Simplify right side
    257,323.14x = 51,187,930,438.95
  5. Step 5: Solve for x
    x = 51,187,930,438.95/257,323.14
  6. Step 6: Final answer
    x = 198,924.71

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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.