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Finding the Fourth Proportional to 323,831.30, 485,601.15 and 146,246.90

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Solution

The fourth proportional to 323,831.30, 485,601.15 and 146,246.90 is: 219,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,831.30 : 485,601.15 = 146,246.90 : x
  2. Step 2: Convert to fraction form
    323,831.30/485,601.15 = 146,246.90/x
  3. Step 3: Cross multiply
    323,831.30x = 485,601.15 × 146,246.90
  4. Step 4: Simplify right side
    323,831.30x = 71,017,662,823.94
  5. Step 5: Solve for x
    x = 71,017,662,823.94/323,831.30
  6. Step 6: Final answer
    x = 219,304.50

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1.5x scale

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.