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Finding the Fourth Proportional to 371,220.21, 512,284.26 and 201,454.34

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Solution

The fourth proportional to 371,220.21, 512,284.26 and 201,454.34 is: 278,007.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,220.21 : 512,284.26 = 201,454.34 : x
  2. Step 2: Convert to fraction form
    371,220.21/512,284.26 = 201,454.34/x
  3. Step 3: Cross multiply
    371,220.21x = 512,284.26 × 201,454.34
  4. Step 4: Simplify right side
    371,220.21x = 103,201,884,929.27
  5. Step 5: Solve for x
    x = 103,201,884,929.27/371,220.21
  6. Step 6: Final answer
    x = 278,007.18

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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.