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Finding the Fourth Proportional to 223,534.39, 308,479.53 and 121,560.82

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Solution

The fourth proportional to 223,534.39, 308,479.53 and 121,560.82 is: 167,755.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,534.39 : 308,479.53 = 121,560.82 : x
  2. Step 2: Convert to fraction form
    223,534.39/308,479.53 = 121,560.82/x
  3. Step 3: Cross multiply
    223,534.39x = 308,479.53 × 121,560.82
  4. Step 4: Simplify right side
    223,534.39x = 37,499,024,751.34
  5. Step 5: Solve for x
    x = 37,499,024,751.34/223,534.39
  6. Step 6: Final answer
    x = 167,755.06

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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.