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Finding the Fourth Proportional to 291,421.80, 402,172.02 and 170,574.36

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Solution

The fourth proportional to 291,421.80, 402,172.02 and 170,574.36 is: 235,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,421.80 : 402,172.02 = 170,574.36 : x
  2. Step 2: Convert to fraction form
    291,421.80/402,172.02 = 170,574.36/x
  3. Step 3: Cross multiply
    291,421.80x = 402,172.02 × 170,574.36
  4. Step 4: Simplify right side
    291,421.80x = 68,600,234,921.41
  5. Step 5: Solve for x
    x = 68,600,234,921.41/291,421.80
  6. Step 6: Final answer
    x = 235,398.43

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