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Finding the Fourth Proportional to 210,904.86, 291,048.63 and 115,411.53

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Solution

The fourth proportional to 210,904.86, 291,048.63 and 115,411.53 is: 159,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,904.86 : 291,048.63 = 115,411.53 : x
  2. Step 2: Convert to fraction form
    210,904.86/291,048.63 = 115,411.53/x
  3. Step 3: Cross multiply
    210,904.86x = 291,048.63 × 115,411.53
  4. Step 4: Simplify right side
    210,904.86x = 33,590,367,692.70
  5. Step 5: Solve for x
    x = 33,590,367,692.70/210,904.86
  6. Step 6: Final answer
    x = 159,267.87

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