Home / 323,831.90-485,784.30-99,190.55

Finding the Fourth Proportional to 323,831.90, 485,784.30 and 99,190.55

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Solution

The fourth proportional to 323,831.90, 485,784.30 and 99,190.55 is: 148,796.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,831.90 : 485,784.30 = 99,190.55 : x
  2. Step 2: Convert to fraction form
    323,831.90/485,784.30 = 99,190.55/x
  3. Step 3: Cross multiply
    323,831.90x = 485,784.30 × 99,190.55
  4. Step 4: Simplify right side
    323,831.90x = 48,185,211,898.37
  5. Step 5: Solve for x
    x = 48,185,211,898.37/323,831.90
  6. Step 6: Final answer
    x = 148,796.99

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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.