Home / 421,965.26-582,312.66-230,990.72

Finding the Fourth Proportional to 421,965.26, 582,312.66 and 230,990.72

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Solution

The fourth proportional to 421,965.26, 582,312.66 and 230,990.72 is: 318,767.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,965.26 : 582,312.66 = 230,990.72 : x
  2. Step 2: Convert to fraction form
    421,965.26/582,312.66 = 230,990.72/x
  3. Step 3: Cross multiply
    421,965.26x = 582,312.66 × 230,990.72
  4. Step 4: Simplify right side
    421,965.26x = 134,508,820,598.52
  5. Step 5: Solve for x
    x = 134,508,820,598.52/421,965.26
  6. Step 6: Final answer
    x = 318,767.52

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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.