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Finding the Fourth Proportional to 223,357.30, 334,947.25 and 81,124.98

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Solution

The fourth proportional to 223,357.30, 334,947.25 and 81,124.98 is: 121,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,357.30 : 334,947.25 = 81,124.98 : x
  2. Step 2: Convert to fraction form
    223,357.30/334,947.25 = 81,124.98/x
  3. Step 3: Cross multiply
    223,357.30x = 334,947.25 × 81,124.98
  4. Step 4: Simplify right side
    223,357.30x = 27,172,587,802.66
  5. Step 5: Solve for x
    x = 27,172,587,802.66/223,357.30
  6. Step 6: Final answer
    x = 121,655.25

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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.