Home / 421,002.28-580,952.82-229,975.12

Finding the Fourth Proportional to 421,002.28, 580,952.82 and 229,975.12

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Solution

The fourth proportional to 421,002.28, 580,952.82 and 229,975.12 is: 317,349.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,002.28 : 580,952.82 = 229,975.12 : x
  2. Step 2: Convert to fraction form
    421,002.28/580,952.82 = 229,975.12/x
  3. Step 3: Cross multiply
    421,002.28x = 580,952.82 × 229,975.12
  4. Step 4: Simplify right side
    421,002.28x = 133,604,694,493.84
  5. Step 5: Solve for x
    x = 133,604,694,493.84/421,002.28
  6. Step 6: Final answer
    x = 317,349.10

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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.