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Finding the Fourth Proportional to 343,460.80, 515,191.20 and 106,827.40

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Solution

The fourth proportional to 343,460.80, 515,191.20 and 106,827.40 is: 160,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,460.80 : 515,191.20 = 106,827.40 : x
  2. Step 2: Convert to fraction form
    343,460.80/515,191.20 = 106,827.40/x
  3. Step 3: Cross multiply
    343,460.80x = 515,191.20 × 106,827.40
  4. Step 4: Simplify right side
    343,460.80x = 55,036,536,398.88
  5. Step 5: Solve for x
    x = 55,036,536,398.88/343,460.80
  6. Step 6: Final answer
    x = 160,241.10

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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.