Home / 208,727.28-288,155.27-163,308.76

Finding the Fourth Proportional to 208,727.28, 288,155.27 and 163,308.76

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Solution

The fourth proportional to 208,727.28, 288,155.27 and 163,308.76 is: 225,453.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,727.28 : 288,155.27 = 163,308.76 : x
  2. Step 2: Convert to fraction form
    208,727.28/288,155.27 = 163,308.76/x
  3. Step 3: Cross multiply
    208,727.28x = 288,155.27 × 163,308.76
  4. Step 4: Simplify right side
    208,727.28x = 47,058,279,519.05
  5. Step 5: Solve for x
    x = 47,058,279,519.05/208,727.28
  6. Step 6: Final answer
    x = 225,453.42

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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.