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Finding the Fourth Proportional to 371,307.12, 512,404.44 and 201,541.20

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Solution

The fourth proportional to 371,307.12, 512,404.44 and 201,541.20 is: 278,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,307.12 : 512,404.44 = 201,541.20 : x
  2. Step 2: Convert to fraction form
    371,307.12/512,404.44 = 201,541.20/x
  3. Step 3: Cross multiply
    371,307.12x = 512,404.44 × 201,541.20
  4. Step 4: Simplify right side
    371,307.12x = 103,270,605,722.93
  5. Step 5: Solve for x
    x = 103,270,605,722.93/371,307.12
  6. Step 6: Final answer
    x = 278,127.19

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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.