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Finding the Fourth Proportional to 371,124.72, 512,151.48 and 201,358.80

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Solution

The fourth proportional to 371,124.72, 512,151.48 and 201,358.80 is: 277,874.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,124.72 : 512,151.48 = 201,358.80 : x
  2. Step 2: Convert to fraction form
    371,124.72/512,151.48 = 201,358.80/x
  3. Step 3: Cross multiply
    371,124.72x = 512,151.48 × 201,358.80
  4. Step 4: Simplify right side
    371,124.72x = 103,126,207,431.02
  5. Step 5: Solve for x
    x = 103,126,207,431.02/371,124.72
  6. Step 6: Final answer
    x = 277,874.80

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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.