Home / 274,829.40-379,275.48-153,971.70

Finding the Fourth Proportional to 274,829.40, 379,275.48 and 153,971.70

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Solution

The fourth proportional to 274,829.40, 379,275.48 and 153,971.70 is: 212,487.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,829.40 : 379,275.48 = 153,971.70 : x
  2. Step 2: Convert to fraction form
    274,829.40/379,275.48 = 153,971.70/x
  3. Step 3: Cross multiply
    274,829.40x = 379,275.48 × 153,971.70
  4. Step 4: Simplify right side
    274,829.40x = 58,397,690,423.92
  5. Step 5: Solve for x
    x = 58,397,690,423.92/274,829.40
  6. Step 6: Final answer
    x = 212,487.06

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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.