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Finding the Fourth Proportional to 218,648.76, 301,632.19 and 127,949.09

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Solution

The fourth proportional to 218,648.76, 301,632.19 and 127,949.09 is: 176,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,648.76 : 301,632.19 = 127,949.09 : x
  2. Step 2: Convert to fraction form
    218,648.76/301,632.19 = 127,949.09/x
  3. Step 3: Cross multiply
    218,648.76x = 301,632.19 × 127,949.09
  4. Step 4: Simplify right side
    218,648.76x = 38,593,563,585.46
  5. Step 5: Solve for x
    x = 38,593,563,585.46/218,648.76
  6. Step 6: Final answer
    x = 176,509.41

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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.