Home / 288,683.12-398,366.63-159,614.11

Finding the Fourth Proportional to 288,683.12, 398,366.63 and 159,614.11

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Solution

The fourth proportional to 288,683.12, 398,366.63 and 159,614.11 is: 220,258.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,683.12 : 398,366.63 = 159,614.11 : x
  2. Step 2: Convert to fraction form
    288,683.12/398,366.63 = 159,614.11/x
  3. Step 3: Cross multiply
    288,683.12x = 398,366.63 × 159,614.11
  4. Step 4: Simplify right side
    288,683.12x = 63,584,935,101.15
  5. Step 5: Solve for x
    x = 63,584,935,101.15/288,683.12
  6. Step 6: Final answer
    x = 220,258.58

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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.