Home / 274,855.17-379,293.53-154,001.55

Finding the Fourth Proportional to 274,855.17, 379,293.53 and 154,001.55

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Solution

The fourth proportional to 274,855.17, 379,293.53 and 154,001.55 is: 212,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,855.17 : 379,293.53 = 154,001.55 : x
  2. Step 2: Convert to fraction form
    274,855.17/379,293.53 = 154,001.55/x
  3. Step 3: Cross multiply
    274,855.17x = 379,293.53 × 154,001.55
  4. Step 4: Simplify right side
    274,855.17x = 58,411,790,754.96
  5. Step 5: Solve for x
    x = 58,411,790,754.96/274,855.17
  6. Step 6: Final answer
    x = 212,518.44

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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.