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Finding the Fourth Proportional to 218,465.76, 301,482.82 and 127,839.14

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Solution

The fourth proportional to 218,465.76, 301,482.82 and 127,839.14 is: 176,418.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,465.76 : 301,482.82 = 127,839.14 : x
  2. Step 2: Convert to fraction form
    218,465.76/301,482.82 = 127,839.14/x
  3. Step 3: Cross multiply
    218,465.76x = 301,482.82 × 127,839.14
  4. Step 4: Simplify right side
    218,465.76x = 38,541,304,867.68
  5. Step 5: Solve for x
    x = 38,541,304,867.68/218,465.76
  6. Step 6: Final answer
    x = 176,418.06

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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.