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Finding the Fourth Proportional to 274,225.83, 378,450.82 and 153,378.29

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Solution

The fourth proportional to 274,225.83, 378,450.82 and 153,378.29 is: 211,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,225.83 : 378,450.82 = 153,378.29 : x
  2. Step 2: Convert to fraction form
    274,225.83/378,450.82 = 153,378.29/x
  3. Step 3: Cross multiply
    274,225.83x = 378,450.82 × 153,378.29
  4. Step 4: Simplify right side
    274,225.83x = 58,046,136,961.55
  5. Step 5: Solve for x
    x = 58,046,136,961.55/274,225.83
  6. Step 6: Final answer
    x = 211,672.76

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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.