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Finding the Fourth Proportional to 375,695.12, 518,457.94 and 203,617.26

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Solution

The fourth proportional to 375,695.12, 518,457.94 and 203,617.26 is: 280,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,695.12 : 518,457.94 = 203,617.26 : x
  2. Step 2: Convert to fraction form
    375,695.12/518,457.94 = 203,617.26/x
  3. Step 3: Cross multiply
    375,695.12x = 518,457.94 × 203,617.26
  4. Step 4: Simplify right side
    375,695.12x = 105,566,984,659.00
  5. Step 5: Solve for x
    x = 105,566,984,659.00/375,695.12
  6. Step 6: Final answer
    x = 280,991.10

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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.