Home / 387,337.10-534,524.33-215,254.49

Finding the Fourth Proportional to 387,337.10, 534,524.33 and 215,254.49

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Solution

The fourth proportional to 387,337.10, 534,524.33 and 215,254.49 is: 297,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,337.10 : 534,524.33 = 215,254.49 : x
  2. Step 2: Convert to fraction form
    387,337.10/534,524.33 = 215,254.49/x
  3. Step 3: Cross multiply
    387,337.10x = 534,524.33 × 215,254.49
  4. Step 4: Simplify right side
    387,337.10x = 115,058,759,912.26
  5. Step 5: Solve for x
    x = 115,058,759,912.26/387,337.10
  6. Step 6: Final answer
    x = 297,050.71

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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.