Home / 348,782.40-481,288.32-203,600.78

Finding the Fourth Proportional to 348,782.40, 481,288.32 and 203,600.78

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Solution

The fourth proportional to 348,782.40, 481,288.32 and 203,600.78 is: 280,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,782.40 : 481,288.32 = 203,600.78 : x
  2. Step 2: Convert to fraction form
    348,782.40/481,288.32 = 203,600.78/x
  3. Step 3: Cross multiply
    348,782.40x = 481,288.32 × 203,600.78
  4. Step 4: Simplify right side
    348,782.40x = 97,990,677,356.89
  5. Step 5: Solve for x
    x = 97,990,677,356.89/348,782.40
  6. Step 6: Final answer
    x = 280,950.75

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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.