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Finding the Fourth Proportional to 371,280.62, 512,367.82 and 201,514.80

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Solution

The fourth proportional to 371,280.62, 512,367.82 and 201,514.80 is: 278,090.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,280.62 : 512,367.82 = 201,514.80 : x
  2. Step 2: Convert to fraction form
    371,280.62/512,367.82 = 201,514.80/x
  3. Step 3: Cross multiply
    371,280.62x = 512,367.82 × 201,514.80
  4. Step 4: Simplify right side
    371,280.62x = 103,249,698,773.74
  5. Step 5: Solve for x
    x = 103,249,698,773.74/371,280.62
  6. Step 6: Final answer
    x = 278,090.73

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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.