Home / 274,832.34-379,308.70-153,981.81

Finding the Fourth Proportional to 274,832.34, 379,308.70 and 153,981.81

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Solution

The fourth proportional to 274,832.34, 379,308.70 and 153,981.81 is: 212,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,832.34 : 379,308.70 = 153,981.81 : x
  2. Step 2: Convert to fraction form
    274,832.34/379,308.70 = 153,981.81/x
  3. Step 3: Cross multiply
    274,832.34x = 379,308.70 × 153,981.81
  4. Step 4: Simplify right side
    274,832.34x = 58,406,639,934.15
  5. Step 5: Solve for x
    x = 58,406,639,934.15/274,832.34
  6. Step 6: Final answer
    x = 212,517.35

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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.