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Finding the Fourth Proportional to 473,136.20, 709,704.30 and 140,712.20

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Solution

The fourth proportional to 473,136.20, 709,704.30 and 140,712.20 is: 211,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,136.20 : 709,704.30 = 140,712.20 : x
  2. Step 2: Convert to fraction form
    473,136.20/709,704.30 = 140,712.20/x
  3. Step 3: Cross multiply
    473,136.20x = 709,704.30 × 140,712.20
  4. Step 4: Simplify right side
    473,136.20x = 99,864,053,402.46
  5. Step 5: Solve for x
    x = 99,864,053,402.46/473,136.20
  6. Step 6: Final answer
    x = 211,068.30

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