Home / 208,181.46-287,429.16-140,299.38

Finding the Fourth Proportional to 208,181.46, 287,429.16 and 140,299.38

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Solution

The fourth proportional to 208,181.46, 287,429.16 and 140,299.38 is: 193,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,181.46 : 287,429.16 = 140,299.38 : x
  2. Step 2: Convert to fraction form
    208,181.46/287,429.16 = 140,299.38/x
  3. Step 3: Cross multiply
    208,181.46x = 287,429.16 × 140,299.38
  4. Step 4: Simplify right side
    208,181.46x = 40,326,132,941.92
  5. Step 5: Solve for x
    x = 40,326,132,941.92/208,181.46
  6. Step 6: Final answer
    x = 193,706.65

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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.