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Finding the Fourth Proportional to 397,062.07, 547,568.51 and 261,211.10

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Solution

The fourth proportional to 397,062.07, 547,568.51 and 261,211.10 is: 360,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,062.07 : 547,568.51 = 261,211.10 : x
  2. Step 2: Convert to fraction form
    397,062.07/547,568.51 = 261,211.10/x
  3. Step 3: Cross multiply
    397,062.07x = 547,568.51 × 261,211.10
  4. Step 4: Simplify right side
    397,062.07x = 143,030,968,778.56
  5. Step 5: Solve for x
    x = 143,030,968,778.56/397,062.07
  6. Step 6: Final answer
    x = 360,223.20

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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.