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Finding the Fourth Proportional to 257,109.19, 354,810.68 and 156,507.19

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Solution

The fourth proportional to 257,109.19, 354,810.68 and 156,507.19 is: 215,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,109.19 : 354,810.68 = 156,507.19 : x
  2. Step 2: Convert to fraction form
    257,109.19/354,810.68 = 156,507.19/x
  3. Step 3: Cross multiply
    257,109.19x = 354,810.68 × 156,507.19
  4. Step 4: Simplify right side
    257,109.19x = 55,530,421,426.13
  5. Step 5: Solve for x
    x = 55,530,421,426.13/257,109.19
  6. Step 6: Final answer
    x = 215,979.92

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