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Finding the Fourth Proportional to 345,203.25, 476,135.06 and 230,424

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Solution

The fourth proportional to 345,203.25, 476,135.06 and 230,424 is: 317,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,203.25 : 476,135.06 = 230,424 : x
  2. Step 2: Convert to fraction form
    345,203.25/476,135.06 = 230,424/x
  3. Step 3: Cross multiply
    345,203.25x = 476,135.06 × 230,424
  4. Step 4: Simplify right side
    345,203.25x = 109,712,943,913.32
  5. Step 5: Solve for x
    x = 109,712,943,913.32/345,203.25
  6. Step 6: Final answer
    x = 317,821.29

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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.