Home / 208,412.20-287,608.26-112,918.96

Finding the Fourth Proportional to 208,412.20, 287,608.26 and 112,918.96

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Solution

The fourth proportional to 208,412.20, 287,608.26 and 112,918.96 is: 155,827.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,412.20 : 287,608.26 = 112,918.96 : x
  2. Step 2: Convert to fraction form
    208,412.20/287,608.26 = 112,918.96/x
  3. Step 3: Cross multiply
    208,412.20x = 287,608.26 × 112,918.96
  4. Step 4: Simplify right side
    208,412.20x = 32,476,425,606.61
  5. Step 5: Solve for x
    x = 32,476,425,606.61/208,412.20
  6. Step 6: Final answer
    x = 155,827.85

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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.