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Finding the Fourth Proportional to 223,685.58, 335,528.37 and 81,541.51

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Solution

The fourth proportional to 223,685.58, 335,528.37 and 81,541.51 is: 122,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,685.58 : 335,528.37 = 81,541.51 : x
  2. Step 2: Convert to fraction form
    223,685.58/335,528.37 = 81,541.51/x
  3. Step 3: Cross multiply
    223,685.58x = 335,528.37 × 81,541.51
  4. Step 4: Simplify right side
    223,685.58x = 27,359,490,572.61
  5. Step 5: Solve for x
    x = 27,359,490,572.61/223,685.58
  6. Step 6: Final answer
    x = 122,312.27

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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.