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Finding the Fourth Proportional to 371,211.48, 512,268.82 and 201,445.60

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Solution

The fourth proportional to 371,211.48, 512,268.82 and 201,445.60 is: 277,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,211.48 : 512,268.82 = 201,445.60 : x
  2. Step 2: Convert to fraction form
    371,211.48/512,268.82 = 201,445.60/x
  3. Step 3: Cross multiply
    371,211.48x = 512,268.82 × 201,445.60
  4. Step 4: Simplify right side
    371,211.48x = 103,194,299,806.19
  5. Step 5: Solve for x
    x = 103,194,299,806.19/371,211.48
  6. Step 6: Final answer
    x = 277,993.29

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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.