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Finding the Fourth Proportional to 371,307.02, 512,406.30 and 201,541.12

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Solution

The fourth proportional to 371,307.02, 512,406.30 and 201,541.12 is: 278,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,307.02 : 512,406.30 = 201,541.12 : x
  2. Step 2: Convert to fraction form
    371,307.02/512,406.30 = 201,541.12/x
  3. Step 3: Cross multiply
    371,307.02x = 512,406.30 × 201,541.12
  4. Step 4: Simplify right side
    371,307.02x = 103,270,939,597.06
  5. Step 5: Solve for x
    x = 103,270,939,597.06/371,307.02
  6. Step 6: Final answer
    x = 278,128.16

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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.