Home / 218,845.53-328,239.09-61,089.93

Finding the Fourth Proportional to 218,845.53, 328,239.09 and 61,089.93

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Solution

The fourth proportional to 218,845.53, 328,239.09 and 61,089.93 is: 91,626.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,845.53 : 328,239.09 = 61,089.93 : x
  2. Step 2: Convert to fraction form
    218,845.53/328,239.09 = 61,089.93/x
  3. Step 3: Cross multiply
    218,845.53x = 328,239.09 × 61,089.93
  4. Step 4: Simplify right side
    218,845.53x = 20,052,103,031.36
  5. Step 5: Solve for x
    x = 20,052,103,031.36/218,845.53
  6. Step 6: Final answer
    x = 91,626.74

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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.