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Finding the Fourth Proportional to 283,603.56, 391,381.29 and 156,287.40

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Solution

The fourth proportional to 283,603.56, 391,381.29 and 156,287.40 is: 215,681.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,603.56 : 391,381.29 = 156,287.40 : x
  2. Step 2: Convert to fraction form
    283,603.56/391,381.29 = 156,287.40/x
  3. Step 3: Cross multiply
    283,603.56x = 391,381.29 × 156,287.40
  4. Step 4: Simplify right side
    283,603.56x = 61,167,964,222.75
  5. Step 5: Solve for x
    x = 61,167,964,222.75/283,603.56
  6. Step 6: Final answer
    x = 215,681.23

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