Home / 397,142.13-548,061.69-215,854.01

Finding the Fourth Proportional to 397,142.13, 548,061.69 and 215,854.01

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Solution

The fourth proportional to 397,142.13, 548,061.69 and 215,854.01 is: 297,881.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,142.13 : 548,061.69 = 215,854.01 : x
  2. Step 2: Convert to fraction form
    397,142.13/548,061.69 = 215,854.01/x
  3. Step 3: Cross multiply
    397,142.13x = 548,061.69 × 215,854.01
  4. Step 4: Simplify right side
    397,142.13x = 118,301,313,638.25
  5. Step 5: Solve for x
    x = 118,301,313,638.25/397,142.13
  6. Step 6: Final answer
    x = 297,881.55

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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.