Home / 320,749.38-442,627.11-175,554.42

Finding the Fourth Proportional to 320,749.38, 442,627.11 and 175,554.42

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Solution

The fourth proportional to 320,749.38, 442,627.11 and 175,554.42 is: 242,261.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,749.38 : 442,627.11 = 175,554.42 : x
  2. Step 2: Convert to fraction form
    320,749.38/442,627.11 = 175,554.42/x
  3. Step 3: Cross multiply
    320,749.38x = 442,627.11 × 175,554.42
  4. Step 4: Simplify right side
    320,749.38x = 77,705,145,572.33
  5. Step 5: Solve for x
    x = 77,705,145,572.33/320,749.38
  6. Step 6: Final answer
    x = 242,261.25

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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.