Home / 397,130.51-548,044.31-215,842.46

Finding the Fourth Proportional to 397,130.51, 548,044.31 and 215,842.46

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Solution

The fourth proportional to 397,130.51, 548,044.31 and 215,842.46 is: 297,864.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,130.51 : 548,044.31 = 215,842.46 : x
  2. Step 2: Convert to fraction form
    397,130.51/548,044.31 = 215,842.46/x
  3. Step 3: Cross multiply
    397,130.51x = 548,044.31 × 215,842.46
  4. Step 4: Simplify right side
    397,130.51x = 118,291,229,858.79
  5. Step 5: Solve for x
    x = 118,291,229,858.79/397,130.51
  6. Step 6: Final answer
    x = 297,864.87

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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.