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Finding the Fourth Proportional to 383,252.96, 528,905.43 and 213,487.16

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Solution

The fourth proportional to 383,252.96, 528,905.43 and 213,487.16 is: 294,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,252.96 : 528,905.43 = 213,487.16 : x
  2. Step 2: Convert to fraction form
    383,252.96/528,905.43 = 213,487.16/x
  3. Step 3: Cross multiply
    383,252.96x = 528,905.43 × 213,487.16
  4. Step 4: Simplify right side
    383,252.96x = 112,914,518,159.28
  5. Step 5: Solve for x
    x = 112,914,518,159.28/383,252.96
  6. Step 6: Final answer
    x = 294,621.39

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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.