Home / 208,273.16-287,418.34-112,779.85

Finding the Fourth Proportional to 208,273.16, 287,418.34 and 112,779.85

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Solution

The fourth proportional to 208,273.16, 287,418.34 and 112,779.85 is: 155,636.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,273.16 : 287,418.34 = 112,779.85 : x
  2. Step 2: Convert to fraction form
    208,273.16/287,418.34 = 112,779.85/x
  3. Step 3: Cross multiply
    208,273.16x = 287,418.34 × 112,779.85
  4. Step 4: Simplify right side
    208,273.16x = 32,414,997,272.45
  5. Step 5: Solve for x
    x = 32,414,997,272.45/208,273.16
  6. Step 6: Final answer
    x = 155,636.94

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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.