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Finding the Fourth Proportional to 341,428.20, 512,142.30 and 341,428.20

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Solution

The fourth proportional to 341,428.20, 512,142.30 and 341,428.20 is: 512,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,428.20 : 512,142.30 = 341,428.20 : x
  2. Step 2: Convert to fraction form
    341,428.20/512,142.30 = 341,428.20/x
  3. Step 3: Cross multiply
    341,428.20x = 512,142.30 × 341,428.20
  4. Step 4: Simplify right side
    341,428.20x = 174,859,823,632.86
  5. Step 5: Solve for x
    x = 174,859,823,632.86/341,428.20
  6. Step 6: Final answer
    x = 512,142.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.