Home / 219,305.07-328,889.57-79,045.47

Finding the Fourth Proportional to 219,305.07, 328,889.57 and 79,045.47

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Solution

The fourth proportional to 219,305.07, 328,889.57 and 79,045.47 is: 118,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,305.07 : 328,889.57 = 79,045.47 : x
  2. Step 2: Convert to fraction form
    219,305.07/328,889.57 = 79,045.47/x
  3. Step 3: Cross multiply
    219,305.07x = 328,889.57 × 79,045.47
  4. Step 4: Simplify right side
    219,305.07x = 25,997,230,243.52
  5. Step 5: Solve for x
    x = 25,997,230,243.52/219,305.07
  6. Step 6: Final answer
    x = 118,543.68

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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.