Home / 274,833.40-379,281-153,975.70

Finding the Fourth Proportional to 274,833.40, 379,281 and 153,975.70

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Solution

The fourth proportional to 274,833.40, 379,281 and 153,975.70 is: 212,492.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,833.40 : 379,281 = 153,975.70 : x
  2. Step 2: Convert to fraction form
    274,833.40/379,281 = 153,975.70/x
  3. Step 3: Cross multiply
    274,833.40x = 379,281 × 153,975.70
  4. Step 4: Simplify right side
    274,833.40x = 58,400,057,471.70
  5. Step 5: Solve for x
    x = 58,400,057,471.70/274,833.40
  6. Step 6: Final answer
    x = 212,492.58

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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.