Home / 348,040.20-521,282.70-285,832.20

Finding the Fourth Proportional to 348,040.20, 521,282.70 and 285,832.20

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Solution

The fourth proportional to 348,040.20, 521,282.70 and 285,832.20 is: 428,109.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,040.20 : 521,282.70 = 285,832.20 : x
  2. Step 2: Convert to fraction form
    348,040.20/521,282.70 = 285,832.20/x
  3. Step 3: Cross multiply
    348,040.20x = 521,282.70 × 285,832.20
  4. Step 4: Simplify right side
    348,040.20x = 148,999,380,962.94
  5. Step 5: Solve for x
    x = 148,999,380,962.94/348,040.20
  6. Step 6: Final answer
    x = 428,109.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.