Home / 351,985.68-485,612.82-231,192.54

Finding the Fourth Proportional to 351,985.68, 485,612.82 and 231,192.54

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Solution

The fourth proportional to 351,985.68, 485,612.82 and 231,192.54 is: 318,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,985.68 : 485,612.82 = 231,192.54 : x
  2. Step 2: Convert to fraction form
    351,985.68/485,612.82 = 231,192.54/x
  3. Step 3: Cross multiply
    351,985.68x = 485,612.82 × 231,192.54
  4. Step 4: Simplify right side
    351,985.68x = 112,270,061,312.36
  5. Step 5: Solve for x
    x = 112,270,061,312.36/351,985.68
  6. Step 6: Final answer
    x = 318,962.01

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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.