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Finding the Fourth Proportional to 164,831.20, 247,246.80 and 122,840.80

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Solution

The fourth proportional to 164,831.20, 247,246.80 and 122,840.80 is: 184,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,831.20 : 247,246.80 = 122,840.80 : x
  2. Step 2: Convert to fraction form
    164,831.20/247,246.80 = 122,840.80/x
  3. Step 3: Cross multiply
    164,831.20x = 247,246.80 × 122,840.80
  4. Step 4: Simplify right side
    164,831.20x = 30,371,994,709.44
  5. Step 5: Solve for x
    x = 30,371,994,709.44/164,831.20
  6. Step 6: Final answer
    x = 184,261.20

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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.