Home / 274,921.71-379,396.55-154,089.96

Finding the Fourth Proportional to 274,921.71, 379,396.55 and 154,089.96

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Solution

The fourth proportional to 274,921.71, 379,396.55 and 154,089.96 is: 212,646.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,921.71 : 379,396.55 = 154,089.96 : x
  2. Step 2: Convert to fraction form
    274,921.71/379,396.55 = 154,089.96/x
  3. Step 3: Cross multiply
    274,921.71x = 379,396.55 × 154,089.96
  4. Step 4: Simplify right side
    274,921.71x = 58,461,199,213.64
  5. Step 5: Solve for x
    x = 58,461,199,213.64/274,921.71
  6. Step 6: Final answer
    x = 212,646.72

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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.