Home / 421,970.82-582,320.25-230,996.22

Finding the Fourth Proportional to 421,970.82, 582,320.25 and 230,996.22

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Solution

The fourth proportional to 421,970.82, 582,320.25 and 230,996.22 is: 318,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,970.82 : 582,320.25 = 230,996.22 : x
  2. Step 2: Convert to fraction form
    421,970.82/582,320.25 = 230,996.22/x
  3. Step 3: Cross multiply
    421,970.82x = 582,320.25 × 230,996.22
  4. Step 4: Simplify right side
    421,970.82x = 134,513,776,579.46
  5. Step 5: Solve for x
    x = 134,513,776,579.46/421,970.82
  6. Step 6: Final answer
    x = 318,775.07

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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.