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Finding the Fourth Proportional to 343,106.20, 514,659.30 and 323,860.60

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Solution

The fourth proportional to 343,106.20, 514,659.30 and 323,860.60 is: 485,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,106.20 : 514,659.30 = 323,860.60 : x
  2. Step 2: Convert to fraction form
    343,106.20/514,659.30 = 323,860.60/x
  3. Step 3: Cross multiply
    343,106.20x = 514,659.30 × 323,860.60
  4. Step 4: Simplify right side
    343,106.20x = 166,677,869,693.58
  5. Step 5: Solve for x
    x = 166,677,869,693.58/343,106.20
  6. Step 6: Final answer
    x = 485,790.90

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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.