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Finding the Fourth Proportional to 223,598.10, 308,572.30 and 121,630.98

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Solution

The fourth proportional to 223,598.10, 308,572.30 and 121,630.98 is: 167,854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,598.10 : 308,572.30 = 121,630.98 : x
  2. Step 2: Convert to fraction form
    223,598.10/308,572.30 = 121,630.98/x
  3. Step 3: Cross multiply
    223,598.10x = 308,572.30 × 121,630.98
  4. Step 4: Simplify right side
    223,598.10x = 37,531,951,249.85
  5. Step 5: Solve for x
    x = 37,531,951,249.85/223,598.10
  6. Step 6: Final answer
    x = 167,854.52

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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.