Home / 371,320.29-512,418.69-201,554.28

Finding the Fourth Proportional to 371,320.29, 512,418.69 and 201,554.28

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Solution

The fourth proportional to 371,320.29, 512,418.69 and 201,554.28 is: 278,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,320.29 : 512,418.69 = 201,554.28 : x
  2. Step 2: Convert to fraction form
    371,320.29/512,418.69 = 201,554.28/x
  3. Step 3: Cross multiply
    371,320.29x = 512,418.69 × 201,554.28
  4. Step 4: Simplify right side
    371,320.29x = 103,280,180,121.49
  5. Step 5: Solve for x
    x = 103,280,180,121.49/371,320.29
  6. Step 6: Final answer
    x = 278,143.11

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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.