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Finding the Fourth Proportional to 253,152.30, 379,728.45 and 223,627.80

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Solution

The fourth proportional to 253,152.30, 379,728.45 and 223,627.80 is: 335,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,152.30 : 379,728.45 = 223,627.80 : x
  2. Step 2: Convert to fraction form
    253,152.30/379,728.45 = 223,627.80/x
  3. Step 3: Cross multiply
    253,152.30x = 379,728.45 × 223,627.80
  4. Step 4: Simplify right side
    253,152.30x = 84,917,837,870.91
  5. Step 5: Solve for x
    x = 84,917,837,870.91/253,152.30
  6. Step 6: Final answer
    x = 335,441.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.