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Finding the Fourth Proportional to 223,348.95, 308,220.53 and 121,372.48

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Solution

The fourth proportional to 223,348.95, 308,220.53 and 121,372.48 is: 167,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,348.95 : 308,220.53 = 121,372.48 : x
  2. Step 2: Convert to fraction form
    223,348.95/308,220.53 = 121,372.48/x
  3. Step 3: Cross multiply
    223,348.95x = 308,220.53 × 121,372.48
  4. Step 4: Simplify right side
    223,348.95x = 37,409,490,652.75
  5. Step 5: Solve for x
    x = 37,409,490,652.75/223,348.95
  6. Step 6: Final answer
    x = 167,493.47

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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.