Home / 415,015.45-572,749.18-231,282.54

Finding the Fourth Proportional to 415,015.45, 572,749.18 and 231,282.54

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Solution

The fourth proportional to 415,015.45, 572,749.18 and 231,282.54 is: 319,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,015.45 : 572,749.18 = 231,282.54 : x
  2. Step 2: Convert to fraction form
    415,015.45/572,749.18 = 231,282.54/x
  3. Step 3: Cross multiply
    415,015.45x = 572,749.18 × 231,282.54
  4. Step 4: Simplify right side
    415,015.45x = 132,466,884,555.11
  5. Step 5: Solve for x
    x = 132,466,884,555.11/415,015.45
  6. Step 6: Final answer
    x = 319,185.43

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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.