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Finding the Fourth Proportional to 297,242.18, 445,590.57 and 128,656.34

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Solution

The fourth proportional to 297,242.18, 445,590.57 and 128,656.34 is: 192,866.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,242.18 : 445,590.57 = 128,656.34 : x
  2. Step 2: Convert to fraction form
    297,242.18/445,590.57 = 128,656.34/x
  3. Step 3: Cross multiply
    297,242.18x = 445,590.57 × 128,656.34
  4. Step 4: Simplify right side
    297,242.18x = 57,328,051,874.71
  5. Step 5: Solve for x
    x = 57,328,051,874.71/297,242.18
  6. Step 6: Final answer
    x = 192,866.48

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