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Finding the Fourth Proportional to 203,111.76, 304,468.77 and 84,816.93

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Solution

The fourth proportional to 203,111.76, 304,468.77 and 84,816.93 is: 127,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,111.76 : 304,468.77 = 84,816.93 : x
  2. Step 2: Convert to fraction form
    203,111.76/304,468.77 = 84,816.93/x
  3. Step 3: Cross multiply
    203,111.76x = 304,468.77 × 84,816.93
  4. Step 4: Simplify right side
    203,111.76x = 25,824,106,352.28
  5. Step 5: Solve for x
    x = 25,824,106,352.28/203,111.76
  6. Step 6: Final answer
    x = 127,142.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.