Home / 317,779.25-438,428.63-179,939.39

Finding the Fourth Proportional to 317,779.25, 438,428.63 and 179,939.39

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Solution

The fourth proportional to 317,779.25, 438,428.63 and 179,939.39 is: 248,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,779.25 : 438,428.63 = 179,939.39 : x
  2. Step 2: Convert to fraction form
    317,779.25/438,428.63 = 179,939.39/x
  3. Step 3: Cross multiply
    317,779.25x = 438,428.63 × 179,939.39
  4. Step 4: Simplify right side
    317,779.25x = 78,890,578,498.44
  5. Step 5: Solve for x
    x = 78,890,578,498.44/317,779.25
  6. Step 6: Final answer
    x = 248,255.92

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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.