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Finding the Fourth Proportional to 371,280.25, 512,367.25 and 201,514.39

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Solution

The fourth proportional to 371,280.25, 512,367.25 and 201,514.39 is: 278,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,280.25 : 512,367.25 = 201,514.39 : x
  2. Step 2: Convert to fraction form
    371,280.25/512,367.25 = 201,514.39/x
  3. Step 3: Cross multiply
    371,280.25x = 512,367.25 × 201,514.39
  4. Step 4: Simplify right side
    371,280.25x = 103,249,371,277.89
  5. Step 5: Solve for x
    x = 103,249,371,277.89/371,280.25
  6. Step 6: Final answer
    x = 278,090.13

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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.