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Finding the Fourth Proportional to 346,406.52, 477,864.88 and 210,404.28

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Solution

The fourth proportional to 346,406.52, 477,864.88 and 210,404.28 is: 290,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,406.52 : 477,864.88 = 210,404.28 : x
  2. Step 2: Convert to fraction form
    346,406.52/477,864.88 = 210,404.28/x
  3. Step 3: Cross multiply
    346,406.52x = 477,864.88 × 210,404.28
  4. Step 4: Simplify right side
    346,406.52x = 100,544,816,013.69
  5. Step 5: Solve for x
    x = 100,544,816,013.69/346,406.52
  6. Step 6: Final answer
    x = 290,250.93

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