Home / 323,569.78-485,355.75-98,929.33

Finding the Fourth Proportional to 323,569.78, 485,355.75 and 98,929.33

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Solution

The fourth proportional to 323,569.78, 485,355.75 and 98,929.33 is: 148,394.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,569.78 : 485,355.75 = 98,929.33 : x
  2. Step 2: Convert to fraction form
    323,569.78/485,355.75 = 98,929.33/x
  3. Step 3: Cross multiply
    323,569.78x = 485,355.75 × 98,929.33
  4. Step 4: Simplify right side
    323,569.78x = 48,015,919,159.15
  5. Step 5: Solve for x
    x = 48,015,919,159.15/323,569.78
  6. Step 6: Final answer
    x = 148,394.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.