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Finding the Fourth Proportional to 383,224.16, 528,808.96 and 222,129.76

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Solution

The fourth proportional to 383,224.16, 528,808.96 and 222,129.76 is: 306,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,224.16 : 528,808.96 = 222,129.76 : x
  2. Step 2: Convert to fraction form
    383,224.16/528,808.96 = 222,129.76/x
  3. Step 3: Cross multiply
    383,224.16x = 528,808.96 × 222,129.76
  4. Step 4: Simplify right side
    383,224.16x = 117,464,207,370.65
  5. Step 5: Solve for x
    x = 117,464,207,370.65/383,224.16
  6. Step 6: Final answer
    x = 306,515.66

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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.