Home / 331,394.48-497,133.72-326,265.20

Finding the Fourth Proportional to 331,394.48, 497,133.72 and 326,265.20

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Solution

The fourth proportional to 331,394.48, 497,133.72 and 326,265.20 is: 489,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,394.48 : 497,133.72 = 326,265.20 : x
  2. Step 2: Convert to fraction form
    331,394.48/497,133.72 = 326,265.20/x
  3. Step 3: Cross multiply
    331,394.48x = 497,133.72 × 326,265.20
  4. Step 4: Simplify right side
    331,394.48x = 162,197,432,582.54
  5. Step 5: Solve for x
    x = 162,197,432,582.54/331,394.48
  6. Step 6: Final answer
    x = 489,439.15

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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.