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Finding the Fourth Proportional to 328,587.12, 453,241.44 and 215,417.16

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Solution

The fourth proportional to 328,587.12, 453,241.44 and 215,417.16 is: 297,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,587.12 : 453,241.44 = 215,417.16 : x
  2. Step 2: Convert to fraction form
    328,587.12/453,241.44 = 215,417.16/x
  3. Step 3: Cross multiply
    328,587.12x = 453,241.44 × 215,417.16
  4. Step 4: Simplify right side
    328,587.12x = 97,635,983,799.11
  5. Step 5: Solve for x
    x = 97,635,983,799.11/328,587.12
  6. Step 6: Final answer
    x = 297,138.80

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