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Finding the Fourth Proportional to 341,908.20, 512,862.30 and 105,323.40

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Solution

The fourth proportional to 341,908.20, 512,862.30 and 105,323.40 is: 157,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,908.20 : 512,862.30 = 105,323.40 : x
  2. Step 2: Convert to fraction form
    341,908.20/512,862.30 = 105,323.40/x
  3. Step 3: Cross multiply
    341,908.20x = 512,862.30 × 105,323.40
  4. Step 4: Simplify right side
    341,908.20x = 54,016,401,167.82
  5. Step 5: Solve for x
    x = 54,016,401,167.82/341,908.20
  6. Step 6: Final answer
    x = 157,985.10

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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.