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Finding the Fourth Proportional to 375,772.72, 518,564.43 and 203,690.02

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Solution

The fourth proportional to 375,772.72, 518,564.43 and 203,690.02 is: 281,091.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,772.72 : 518,564.43 = 203,690.02 : x
  2. Step 2: Convert to fraction form
    375,772.72/518,564.43 = 203,690.02/x
  3. Step 3: Cross multiply
    375,772.72x = 518,564.43 × 203,690.02
  4. Step 4: Simplify right side
    375,772.72x = 105,626,399,117.99
  5. Step 5: Solve for x
    x = 105,626,399,117.99/375,772.72
  6. Step 6: Final answer
    x = 281,091.18

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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.