Home / 389,072.16-583,763.76-211,371.12

Finding the Fourth Proportional to 389,072.16, 583,763.76 and 211,371.12

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Solution

The fourth proportional to 389,072.16, 583,763.76 and 211,371.12 is: 317,141.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,072.16 : 583,763.76 = 211,371.12 : x
  2. Step 2: Convert to fraction form
    389,072.16/583,763.76 = 211,371.12/x
  3. Step 3: Cross multiply
    389,072.16x = 583,763.76 × 211,371.12
  4. Step 4: Simplify right side
    389,072.16x = 123,390,799,766.61
  5. Step 5: Solve for x
    x = 123,390,799,766.61/389,072.16
  6. Step 6: Final answer
    x = 317,141.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.