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Finding the Fourth Proportional to 218,352.94, 301,332.95 and 122,863.03

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Solution

The fourth proportional to 218,352.94, 301,332.95 and 122,863.03 is: 169,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,352.94 : 301,332.95 = 122,863.03 : x
  2. Step 2: Convert to fraction form
    218,352.94/301,332.95 = 122,863.03/x
  3. Step 3: Cross multiply
    218,352.94x = 301,332.95 × 122,863.03
  4. Step 4: Simplify right side
    218,352.94x = 37,022,679,275.84
  5. Step 5: Solve for x
    x = 37,022,679,275.84/218,352.94
  6. Step 6: Final answer
    x = 169,554.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.