Home / 397,150.47-548,071.00-215,862.37

Finding the Fourth Proportional to 397,150.47, 548,071.00 and 215,862.37

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Solution

The fourth proportional to 397,150.47, 548,071.00 and 215,862.37 is: 297,891.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,150.47 : 548,071.00 = 215,862.37 : x
  2. Step 2: Convert to fraction form
    397,150.47/548,071.00 = 215,862.37/x
  3. Step 3: Cross multiply
    397,150.47x = 548,071.00 × 215,862.37
  4. Step 4: Simplify right side
    397,150.47x = 118,307,903,078.44
  5. Step 5: Solve for x
    x = 118,307,903,078.44/397,150.47
  6. Step 6: Final answer
    x = 297,891.89

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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.