Home / 421,953.20-582,272.88-230,929.64

Finding the Fourth Proportional to 421,953.20, 582,272.88 and 230,929.64

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Solution

The fourth proportional to 421,953.20, 582,272.88 and 230,929.64 is: 318,670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,953.20 : 582,272.88 = 230,929.64 : x
  2. Step 2: Convert to fraction form
    421,953.20/582,272.88 = 230,929.64/x
  3. Step 3: Cross multiply
    421,953.20x = 582,272.88 × 230,929.64
  4. Step 4: Simplify right side
    421,953.20x = 134,464,066,560.16
  5. Step 5: Solve for x
    x = 134,464,066,560.16/421,953.20
  6. Step 6: Final answer
    x = 318,670.57

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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.