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Finding the Fourth Proportional to 383,253.46, 528,906.12 and 213,487.66

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Solution

The fourth proportional to 383,253.46, 528,906.12 and 213,487.66 is: 294,622.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,253.46 : 528,906.12 = 213,487.66 : x
  2. Step 2: Convert to fraction form
    383,253.46/528,906.12 = 213,487.66/x
  3. Step 3: Cross multiply
    383,253.46x = 528,906.12 × 213,487.66
  4. Step 4: Simplify right side
    383,253.46x = 112,914,929,918.48
  5. Step 5: Solve for x
    x = 112,914,929,918.48/383,253.46
  6. Step 6: Final answer
    x = 294,622.08

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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.