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Finding the Fourth Proportional to 208,299.08, 287,452.98 and 112,805.92

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Solution

The fourth proportional to 208,299.08, 287,452.98 and 112,805.92 is: 155,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,299.08 : 287,452.98 = 112,805.92 : x
  2. Step 2: Convert to fraction form
    208,299.08/287,452.98 = 112,805.92/x
  3. Step 3: Cross multiply
    208,299.08x = 287,452.98 × 112,805.92
  4. Step 4: Simplify right side
    208,299.08x = 32,426,397,865.64
  5. Step 5: Solve for x
    x = 32,426,397,865.64/208,299.08
  6. Step 6: Final answer
    x = 155,672.30

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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.