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Finding the Fourth Proportional to 315,267.90, 435,080.21 and 172,035.80

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Solution

The fourth proportional to 315,267.90, 435,080.21 and 172,035.80 is: 237,415.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,267.90 : 435,080.21 = 172,035.80 : x
  2. Step 2: Convert to fraction form
    315,267.90/435,080.21 = 172,035.80/x
  3. Step 3: Cross multiply
    315,267.90x = 435,080.21 × 172,035.80
  4. Step 4: Simplify right side
    315,267.90x = 74,849,373,034.81
  5. Step 5: Solve for x
    x = 74,849,373,034.81/315,267.90
  6. Step 6: Final answer
    x = 237,415.14

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