Home / 397,139.13-548,055.65-215,851.48

Finding the Fourth Proportional to 397,139.13, 548,055.65 and 215,851.48

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Solution

The fourth proportional to 397,139.13, 548,055.65 and 215,851.48 is: 297,877.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,139.13 : 548,055.65 = 215,851.48 : x
  2. Step 2: Convert to fraction form
    397,139.13/548,055.65 = 215,851.48/x
  3. Step 3: Cross multiply
    397,139.13x = 548,055.65 × 215,851.48
  4. Step 4: Simplify right side
    397,139.13x = 118,298,622,344.35
  5. Step 5: Solve for x
    x = 118,298,622,344.35/397,139.13
  6. Step 6: Final answer
    x = 297,877.02

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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.