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Finding the Fourth Proportional to 657,401.58, 986,250.15 and 208,149.30

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Solution

The fourth proportional to 657,401.58, 986,250.15 and 208,149.30 is: 312,270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,401.58 : 986,250.15 = 208,149.30 : x
  2. Step 2: Convert to fraction form
    657,401.58/986,250.15 = 208,149.30/x
  3. Step 3: Cross multiply
    657,401.58x = 986,250.15 × 208,149.30
  4. Step 4: Simplify right side
    657,401.58x = 205,287,278,347.40
  5. Step 5: Solve for x
    x = 205,287,278,347.40/657,401.58
  6. Step 6: Final answer
    x = 312,270.74

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