Home / 245,306.02-338,550.35-136,421.20

Finding the Fourth Proportional to 245,306.02, 338,550.35 and 136,421.20

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Solution

The fourth proportional to 245,306.02, 338,550.35 and 136,421.20 is: 188,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,306.02 : 338,550.35 = 136,421.20 : x
  2. Step 2: Convert to fraction form
    245,306.02/338,550.35 = 136,421.20/x
  3. Step 3: Cross multiply
    245,306.02x = 338,550.35 × 136,421.20
  4. Step 4: Simplify right side
    245,306.02x = 46,185,442,632.56
  5. Step 5: Solve for x
    x = 46,185,442,632.56/245,306.02
  6. Step 6: Final answer
    x = 188,276.85

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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.