Home / 397,158.26-548,083.86-215,870.06

Finding the Fourth Proportional to 397,158.26, 548,083.86 and 215,870.06

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Solution

The fourth proportional to 397,158.26, 548,083.86 and 215,870.06 is: 297,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,158.26 : 548,083.86 = 215,870.06 : x
  2. Step 2: Convert to fraction form
    397,158.26/548,083.86 = 215,870.06/x
  3. Step 3: Cross multiply
    397,158.26x = 548,083.86 × 215,870.06
  4. Step 4: Simplify right side
    397,158.26x = 118,314,895,743.23
  5. Step 5: Solve for x
    x = 118,314,895,743.23/397,158.26
  6. Step 6: Final answer
    x = 297,903.65

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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.