Home / 208,273.60-287,417.06-112,780.29

Finding the Fourth Proportional to 208,273.60, 287,417.06 and 112,780.29

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Solution

The fourth proportional to 208,273.60, 287,417.06 and 112,780.29 is: 155,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,273.60 : 287,417.06 = 112,780.29 : x
  2. Step 2: Convert to fraction form
    208,273.60/287,417.06 = 112,780.29/x
  3. Step 3: Cross multiply
    208,273.60x = 287,417.06 × 112,780.29
  4. Step 4: Simplify right side
    208,273.60x = 32,414,978,813.85
  5. Step 5: Solve for x
    x = 32,414,978,813.85/208,273.60
  6. Step 6: Final answer
    x = 155,636.52

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1.5x scale

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.