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Finding the Fourth Proportional to 329,741.80, 455,043.72 and 186,498.80

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Solution

The fourth proportional to 329,741.80, 455,043.72 and 186,498.80 is: 257,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,741.80 : 455,043.72 = 186,498.80 : x
  2. Step 2: Convert to fraction form
    329,741.80/455,043.72 = 186,498.80/x
  3. Step 3: Cross multiply
    329,741.80x = 455,043.72 × 186,498.80
  4. Step 4: Simplify right side
    329,741.80x = 84,865,107,727.54
  5. Step 5: Solve for x
    x = 84,865,107,727.54/329,741.80
  6. Step 6: Final answer
    x = 257,368.36

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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.