Home / 387,632.14-534,919.89-215,549.26

Finding the Fourth Proportional to 387,632.14, 534,919.89 and 215,549.26

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Solution

The fourth proportional to 387,632.14, 534,919.89 and 215,549.26 is: 297,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,632.14 : 534,919.89 = 215,549.26 : x
  2. Step 2: Convert to fraction form
    387,632.14/534,919.89 = 215,549.26/x
  3. Step 3: Cross multiply
    387,632.14x = 534,919.89 × 215,549.26
  4. Step 4: Simplify right side
    387,632.14x = 115,301,586,448.78
  5. Step 5: Solve for x
    x = 115,301,586,448.78/387,632.14
  6. Step 6: Final answer
    x = 297,451.05

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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.