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Finding the Fourth Proportional to 303,595.56, 418,959.90 and 167,638.14

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Solution

The fourth proportional to 303,595.56, 418,959.90 and 167,638.14 is: 231,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,595.56 : 418,959.90 = 167,638.14 : x
  2. Step 2: Convert to fraction form
    303,595.56/418,959.90 = 167,638.14/x
  3. Step 3: Cross multiply
    303,595.56x = 418,959.90 × 167,638.14
  4. Step 4: Simplify right side
    303,595.56x = 70,233,658,370.59
  5. Step 5: Solve for x
    x = 70,233,658,370.59/303,595.56
  6. Step 6: Final answer
    x = 231,339.54

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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.