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Finding the Fourth Proportional to 348,303.10, 480,213.30 and 225,578.65

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Solution

The fourth proportional to 348,303.10, 480,213.30 and 225,578.65 is: 311,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,303.10 : 480,213.30 = 225,578.65 : x
  2. Step 2: Convert to fraction form
    348,303.10/480,213.30 = 225,578.65/x
  3. Step 3: Cross multiply
    348,303.10x = 480,213.30 × 225,578.65
  4. Step 4: Simplify right side
    348,303.10x = 108,325,867,926.05
  5. Step 5: Solve for x
    x = 108,325,867,926.05/348,303.10
  6. Step 6: Final answer
    x = 311,010.35

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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.