Home / 387,568.29-534,816.46-213,150.77

Finding the Fourth Proportional to 387,568.29, 534,816.46 and 213,150.77

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Solution

The fourth proportional to 387,568.29, 534,816.46 and 213,150.77 is: 294,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,568.29 : 534,816.46 = 213,150.77 : x
  2. Step 2: Convert to fraction form
    387,568.29/534,816.46 = 213,150.77/x
  3. Step 3: Cross multiply
    387,568.29x = 534,816.46 × 213,150.77
  4. Step 4: Simplify right side
    387,568.29x = 113,996,539,191.92
  5. Step 5: Solve for x
    x = 113,996,539,191.92/387,568.29
  6. Step 6: Final answer
    x = 294,132.78

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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.