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Finding the Fourth Proportional to 430,657.75, 645,992.09 and 150,175

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Solution

The fourth proportional to 430,657.75, 645,992.09 and 150,175 is: 225,264.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,657.75 : 645,992.09 = 150,175 : x
  2. Step 2: Convert to fraction form
    430,657.75/645,992.09 = 150,175/x
  3. Step 3: Cross multiply
    430,657.75x = 645,992.09 × 150,175
  4. Step 4: Simplify right side
    430,657.75x = 97,011,862,115.75
  5. Step 5: Solve for x
    x = 97,011,862,115.75/430,657.75
  6. Step 6: Final answer
    x = 225,264.41

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