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Finding the Fourth Proportional to 402,415.26, 555,363.95 and 230,387.18

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Solution

The fourth proportional to 402,415.26, 555,363.95 and 230,387.18 is: 317,951.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,415.26 : 555,363.95 = 230,387.18 : x
  2. Step 2: Convert to fraction form
    402,415.26/555,363.95 = 230,387.18/x
  3. Step 3: Cross multiply
    402,415.26x = 555,363.95 × 230,387.18
  4. Step 4: Simplify right side
    402,415.26x = 127,948,734,314.16
  5. Step 5: Solve for x
    x = 127,948,734,314.16/402,415.26
  6. Step 6: Final answer
    x = 317,951.99

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