Home / 387,057.40-534,121.03-214,986.52

Finding the Fourth Proportional to 387,057.40, 534,121.03 and 214,986.52

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Solution

The fourth proportional to 387,057.40, 534,121.03 and 214,986.52 is: 296,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,057.40 : 534,121.03 = 214,986.52 : x
  2. Step 2: Convert to fraction form
    387,057.40/534,121.03 = 214,986.52/x
  3. Step 3: Cross multiply
    387,057.40x = 534,121.03 × 214,986.52
  4. Step 4: Simplify right side
    387,057.40x = 114,828,821,498.52
  5. Step 5: Solve for x
    x = 114,828,821,498.52/387,057.40
  6. Step 6: Final answer
    x = 296,671.30

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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.