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Finding the Fourth Proportional to 208,273.08, 287,416.44 and 112,779.48

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Solution

The fourth proportional to 208,273.08, 287,416.44 and 112,779.48 is: 155,635.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,273.08 : 287,416.44 = 112,779.48 : x
  2. Step 2: Convert to fraction form
    208,273.08/287,416.44 = 112,779.48/x
  3. Step 3: Cross multiply
    208,273.08x = 287,416.44 × 112,779.48
  4. Step 4: Simplify right side
    208,273.08x = 32,414,676,646.65
  5. Step 5: Solve for x
    x = 32,414,676,646.65/208,273.08
  6. Step 6: Final answer
    x = 155,635.46

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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.