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Finding the Fourth Proportional to 291,953.40, 437,897.70 and 81,612.60

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Solution

The fourth proportional to 291,953.40, 437,897.70 and 81,612.60 is: 122,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,953.40 : 437,897.70 = 81,612.60 : x
  2. Step 2: Convert to fraction form
    291,953.40/437,897.70 = 81,612.60/x
  3. Step 3: Cross multiply
    291,953.40x = 437,897.70 × 81,612.60
  4. Step 4: Simplify right side
    291,953.40x = 35,737,969,831.02
  5. Step 5: Solve for x
    x = 35,737,969,831.02/291,953.40
  6. Step 6: Final answer
    x = 122,409.84

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