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Finding the Fourth Proportional to 223,524.60, 308,440.62 and 128,035.32

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Solution

The fourth proportional to 223,524.60, 308,440.62 and 128,035.32 is: 176,675.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,524.60 : 308,440.62 = 128,035.32 : x
  2. Step 2: Convert to fraction form
    223,524.60/308,440.62 = 128,035.32/x
  3. Step 3: Cross multiply
    223,524.60x = 308,440.62 × 128,035.32
  4. Step 4: Simplify right side
    223,524.60x = 39,491,293,482.70
  5. Step 5: Solve for x
    x = 39,491,293,482.70/223,524.60
  6. Step 6: Final answer
    x = 176,675.38

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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.