Home / 208,889.30-288,266.92-113,396.04

Finding the Fourth Proportional to 208,889.30, 288,266.92 and 113,396.04

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Solution

The fourth proportional to 208,889.30, 288,266.92 and 113,396.04 is: 156,486.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,889.30 : 288,266.92 = 113,396.04 : x
  2. Step 2: Convert to fraction form
    208,889.30/288,266.92 = 113,396.04/x
  3. Step 3: Cross multiply
    208,889.30x = 288,266.92 × 113,396.04
  4. Step 4: Simplify right side
    208,889.30x = 32,688,326,907.51
  5. Step 5: Solve for x
    x = 32,688,326,907.51/208,889.30
  6. Step 6: Final answer
    x = 156,486.36

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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.