Home / 245,151.05-338,306.41-137,718.77

Finding the Fourth Proportional to 245,151.05, 338,306.41 and 137,718.77

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Solution

The fourth proportional to 245,151.05, 338,306.41 and 137,718.77 is: 190,050.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,151.05 : 338,306.41 = 137,718.77 : x
  2. Step 2: Convert to fraction form
    245,151.05/338,306.41 = 137,718.77/x
  3. Step 3: Cross multiply
    245,151.05x = 338,306.41 × 137,718.77
  4. Step 4: Simplify right side
    245,151.05x = 46,591,142,668.32
  5. Step 5: Solve for x
    x = 46,591,142,668.32/245,151.05
  6. Step 6: Final answer
    x = 190,050.76

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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.