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Finding the Fourth Proportional to 283,442.16, 391,150.16 and 156,117.76

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Solution

The fourth proportional to 283,442.16, 391,150.16 and 156,117.76 is: 215,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,442.16 : 391,150.16 = 156,117.76 : x
  2. Step 2: Convert to fraction form
    283,442.16/391,150.16 = 156,117.76/x
  3. Step 3: Cross multiply
    283,442.16x = 391,150.16 × 156,117.76
  4. Step 4: Simplify right side
    283,442.16x = 61,065,484,847.09
  5. Step 5: Solve for x
    x = 61,065,484,847.09/283,442.16
  6. Step 6: Final answer
    x = 215,442.49

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