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Finding the Fourth Proportional to 381,618.40, 572,443.16 and 97,316.32

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Solution

The fourth proportional to 381,618.40, 572,443.16 and 97,316.32 is: 145,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,618.40 : 572,443.16 = 97,316.32 : x
  2. Step 2: Convert to fraction form
    381,618.40/572,443.16 = 97,316.32/x
  3. Step 3: Cross multiply
    381,618.40x = 572,443.16 × 97,316.32
  4. Step 4: Simplify right side
    381,618.40x = 55,708,059,822.68
  5. Step 5: Solve for x
    x = 55,708,059,822.68/381,618.40
  6. Step 6: Final answer
    x = 145,978.44

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