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Finding the Fourth Proportional to 545,786.88, 818,767.92 and 230,290.32

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Solution

The fourth proportional to 545,786.88, 818,767.92 and 230,290.32 is: 345,472.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,786.88 : 818,767.92 = 230,290.32 : x
  2. Step 2: Convert to fraction form
    545,786.88/818,767.92 = 230,290.32/x
  3. Step 3: Cross multiply
    545,786.88x = 818,767.92 × 230,290.32
  4. Step 4: Simplify right side
    545,786.88x = 188,554,326,302.53
  5. Step 5: Solve for x
    x = 188,554,326,302.53/545,786.88
  6. Step 6: Final answer
    x = 345,472.44

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Similar ratio
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1.5x scale

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.