Home / 288,931.06-398,717.19-159,866.17

Finding the Fourth Proportional to 288,931.06, 398,717.19 and 159,866.17

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Solution

The fourth proportional to 288,931.06, 398,717.19 and 159,866.17 is: 220,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,931.06 : 398,717.19 = 159,866.17 : x
  2. Step 2: Convert to fraction form
    288,931.06/398,717.19 = 159,866.17/x
  3. Step 3: Cross multiply
    288,931.06x = 398,717.19 × 159,866.17
  4. Step 4: Simplify right side
    288,931.06x = 63,741,390,078.46
  5. Step 5: Solve for x
    x = 63,741,390,078.46/288,931.06
  6. Step 6: Final answer
    x = 220,611.07

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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.