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Finding the Fourth Proportional to 279,544.56, 418,943.16 and 101,884.56

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Solution

The fourth proportional to 279,544.56, 418,943.16 and 101,884.56 is: 152,690.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,544.56 : 418,943.16 = 101,884.56 : x
  2. Step 2: Convert to fraction form
    279,544.56/418,943.16 = 101,884.56/x
  3. Step 3: Cross multiply
    279,544.56x = 418,943.16 × 101,884.56
  4. Step 4: Simplify right side
    279,544.56x = 42,683,839,521.61
  5. Step 5: Solve for x
    x = 42,683,839,521.61/279,544.56
  6. Step 6: Final answer
    x = 152,690.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.