Home / 274,830.42-379,276.86-153,972.70

Finding the Fourth Proportional to 274,830.42, 379,276.86 and 153,972.70

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Solution

The fourth proportional to 274,830.42, 379,276.86 and 153,972.70 is: 212,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,830.42 : 379,276.86 = 153,972.70 : x
  2. Step 2: Convert to fraction form
    274,830.42/379,276.86 = 153,972.70/x
  3. Step 3: Cross multiply
    274,830.42x = 379,276.86 × 153,972.70
  4. Step 4: Simplify right side
    274,830.42x = 58,398,282,181.72
  5. Step 5: Solve for x
    x = 58,398,282,181.72/274,830.42
  6. Step 6: Final answer
    x = 212,488.42

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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.