Home / 274,811.07-379,219.50-153,931.92

Finding the Fourth Proportional to 274,811.07, 379,219.50 and 153,931.92

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Solution

The fourth proportional to 274,811.07, 379,219.50 and 153,931.92 is: 212,414.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,811.07 : 379,219.50 = 153,931.92 : x
  2. Step 2: Convert to fraction form
    274,811.07/379,219.50 = 153,931.92/x
  3. Step 3: Cross multiply
    274,811.07x = 379,219.50 × 153,931.92
  4. Step 4: Simplify right side
    274,811.07x = 58,373,985,736.44
  5. Step 5: Solve for x
    x = 58,373,985,736.44/274,811.07
  6. Step 6: Final answer
    x = 212,414.97

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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.