Home / 421,929.20-582,267.77-230,938.49

Finding the Fourth Proportional to 421,929.20, 582,267.77 and 230,938.49

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Solution

The fourth proportional to 421,929.20, 582,267.77 and 230,938.49 is: 318,698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,929.20 : 582,267.77 = 230,938.49 : x
  2. Step 2: Convert to fraction form
    421,929.20/582,267.77 = 230,938.49/x
  3. Step 3: Cross multiply
    421,929.20x = 582,267.77 × 230,938.49
  4. Step 4: Simplify right side
    421,929.20x = 134,468,035,513.44
  5. Step 5: Solve for x
    x = 134,468,035,513.44/421,929.20
  6. Step 6: Final answer
    x = 318,698.11

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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.