Home / 397,250.07-548,215.70-215,974.19

Finding the Fourth Proportional to 397,250.07, 548,215.70 and 215,974.19

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Solution

The fourth proportional to 397,250.07, 548,215.70 and 215,974.19 is: 298,050.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,250.07 : 548,215.70 = 215,974.19 : x
  2. Step 2: Convert to fraction form
    397,250.07/548,215.70 = 215,974.19/x
  3. Step 3: Cross multiply
    397,250.07x = 548,215.70 × 215,974.19
  4. Step 4: Simplify right side
    397,250.07x = 118,400,437,931.83
  5. Step 5: Solve for x
    x = 118,400,437,931.83/397,250.07
  6. Step 6: Final answer
    x = 298,050.14

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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.