Home / 288,929.87-398,713.57-159,868.58

Finding the Fourth Proportional to 288,929.87, 398,713.57 and 159,868.58

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Solution

The fourth proportional to 288,929.87, 398,713.57 and 159,868.58 is: 220,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,929.87 : 398,713.57 = 159,868.58 : x
  2. Step 2: Convert to fraction form
    288,929.87/398,713.57 = 159,868.58/x
  3. Step 3: Cross multiply
    288,929.87x = 398,713.57 × 159,868.58
  4. Step 4: Simplify right side
    288,929.87x = 63,741,772,262.63
  5. Step 5: Solve for x
    x = 63,741,772,262.63/288,929.87
  6. Step 6: Final answer
    x = 220,613.30

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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.