Home / 288,749.15-398,476.47-159,680.95

Finding the Fourth Proportional to 288,749.15, 398,476.47 and 159,680.95

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Solution

The fourth proportional to 288,749.15, 398,476.47 and 159,680.95 is: 220,361.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,749.15 : 398,476.47 = 159,680.95 : x
  2. Step 2: Convert to fraction form
    288,749.15/398,476.47 = 159,680.95/x
  3. Step 3: Cross multiply
    288,749.15x = 398,476.47 × 159,680.95
  4. Step 4: Simplify right side
    288,749.15x = 63,629,101,282.25
  5. Step 5: Solve for x
    x = 63,629,101,282.25/288,749.15
  6. Step 6: Final answer
    x = 220,361.17

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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.