Home / 387,484.74-534,735.27-213,062.28

Finding the Fourth Proportional to 387,484.74, 534,735.27 and 213,062.28

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Solution

The fourth proportional to 387,484.74, 534,735.27 and 213,062.28 is: 294,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,484.74 : 534,735.27 = 213,062.28 : x
  2. Step 2: Convert to fraction form
    387,484.74/534,735.27 = 213,062.28/x
  3. Step 3: Cross multiply
    387,484.74x = 534,735.27 × 213,062.28
  4. Step 4: Simplify right side
    387,484.74x = 113,931,915,822.62
  5. Step 5: Solve for x
    x = 113,931,915,822.62/387,484.74
  6. Step 6: Final answer
    x = 294,029.43

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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.