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Finding the Fourth Proportional to 349,441.78, 481,039.62 and 258,626.61

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Solution

The fourth proportional to 349,441.78, 481,039.62 and 258,626.61 is: 356,023.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,441.78 : 481,039.62 = 258,626.61 : x
  2. Step 2: Convert to fraction form
    349,441.78/481,039.62 = 258,626.61/x
  3. Step 3: Cross multiply
    349,441.78x = 481,039.62 × 258,626.61
  4. Step 4: Simplify right side
    349,441.78x = 124,409,646,196.29
  5. Step 5: Solve for x
    x = 124,409,646,196.29/349,441.78
  6. Step 6: Final answer
    x = 356,023.96

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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.