Home / 387,434.28-534,669.21-213,002.37

Finding the Fourth Proportional to 387,434.28, 534,669.21 and 213,002.37

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Solution

The fourth proportional to 387,434.28, 534,669.21 and 213,002.37 is: 293,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,434.28 : 534,669.21 = 213,002.37 : x
  2. Step 2: Convert to fraction form
    387,434.28/534,669.21 = 213,002.37/x
  3. Step 3: Cross multiply
    387,434.28x = 534,669.21 × 213,002.37
  4. Step 4: Simplify right side
    387,434.28x = 113,885,808,896.03
  5. Step 5: Solve for x
    x = 113,885,808,896.03/387,434.28
  6. Step 6: Final answer
    x = 293,948.72

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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.