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Finding the Fourth Proportional to 373,563.04, 515,496 and 212,457.28

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Solution

The fourth proportional to 373,563.04, 515,496 and 212,457.28 is: 293,179.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,563.04 : 515,496 = 212,457.28 : x
  2. Step 2: Convert to fraction form
    373,563.04/515,496 = 212,457.28/x
  3. Step 3: Cross multiply
    373,563.04x = 515,496 × 212,457.28
  4. Step 4: Simplify right side
    373,563.04x = 109,520,878,010.88
  5. Step 5: Solve for x
    x = 109,520,878,010.88/373,563.04
  6. Step 6: Final answer
    x = 293,179.11

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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.