Home / 421,985.13-582,341.06-231,016.29

Finding the Fourth Proportional to 421,985.13, 582,341.06 and 231,016.29

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Solution

The fourth proportional to 421,985.13, 582,341.06 and 231,016.29 is: 318,803.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,985.13 : 582,341.06 = 231,016.29 : x
  2. Step 2: Convert to fraction form
    421,985.13/582,341.06 = 231,016.29/x
  3. Step 3: Cross multiply
    421,985.13x = 582,341.06 × 231,016.29
  4. Step 4: Simplify right side
    421,985.13x = 134,530,269,589.63
  5. Step 5: Solve for x
    x = 134,530,269,589.63/421,985.13
  6. Step 6: Final answer
    x = 318,803.34

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1.5x scale

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.