Home / 326,345.03-489,617.77-155,784.39

Finding the Fourth Proportional to 326,345.03, 489,617.77 and 155,784.39

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Solution

The fourth proportional to 326,345.03, 489,617.77 and 155,784.39 is: 233,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,345.03 : 489,617.77 = 155,784.39 : x
  2. Step 2: Convert to fraction form
    326,345.03/489,617.77 = 155,784.39/x
  3. Step 3: Cross multiply
    326,345.03x = 489,617.77 × 155,784.39
  4. Step 4: Simplify right side
    326,345.03x = 76,274,805,632.61
  5. Step 5: Solve for x
    x = 76,274,805,632.61/326,345.03
  6. Step 6: Final answer
    x = 233,724.43

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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.