Home / 371,328.26-512,431.76-201,561.16

Finding the Fourth Proportional to 371,328.26, 512,431.76 and 201,561.16

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Solution

The fourth proportional to 371,328.26, 512,431.76 and 201,561.16 is: 278,153.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,328.26 : 512,431.76 = 201,561.16 : x
  2. Step 2: Convert to fraction form
    371,328.26/512,431.76 = 201,561.16/x
  3. Step 3: Cross multiply
    371,328.26x = 512,431.76 × 201,561.16
  4. Step 4: Simplify right side
    371,328.26x = 103,286,339,966.44
  5. Step 5: Solve for x
    x = 103,286,339,966.44/371,328.26
  6. Step 6: Final answer
    x = 278,153.73

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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.