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Finding the Fourth Proportional to 421,880.20, 582,191.25 and 230,893.13

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Solution

The fourth proportional to 421,880.20, 582,191.25 and 230,893.13 is: 318,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,880.20 : 582,191.25 = 230,893.13 : x
  2. Step 2: Convert to fraction form
    421,880.20/582,191.25 = 230,893.13/x
  3. Step 3: Cross multiply
    421,880.20x = 582,191.25 × 230,893.13
  4. Step 4: Simplify right side
    421,880.20x = 134,423,960,560.74
  5. Step 5: Solve for x
    x = 134,423,960,560.74/421,880.20
  6. Step 6: Final answer
    x = 318,630.65

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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.