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Finding the Fourth Proportional to 261,575.52, 392,535.60 and 143,329.89

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Solution

The fourth proportional to 261,575.52, 392,535.60 and 143,329.89 is: 215,089.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,575.52 : 392,535.60 = 143,329.89 : x
  2. Step 2: Convert to fraction form
    261,575.52/392,535.60 = 143,329.89/x
  3. Step 3: Cross multiply
    261,575.52x = 392,535.60 × 143,329.89
  4. Step 4: Simplify right side
    261,575.52x = 56,262,084,369.08
  5. Step 5: Solve for x
    x = 56,262,084,369.08/261,575.52
  6. Step 6: Final answer
    x = 215,089.26

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