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Finding the Fourth Proportional to 515,808.20, 773,712.30 and 160,819.40

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Solution

The fourth proportional to 515,808.20, 773,712.30 and 160,819.40 is: 241,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,808.20 : 773,712.30 = 160,819.40 : x
  2. Step 2: Convert to fraction form
    515,808.20/773,712.30 = 160,819.40/x
  3. Step 3: Cross multiply
    515,808.20x = 773,712.30 × 160,819.40
  4. Step 4: Simplify right side
    515,808.20x = 124,427,947,858.62
  5. Step 5: Solve for x
    x = 124,427,947,858.62/515,808.20
  6. Step 6: Final answer
    x = 241,229.10

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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.