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Finding the Fourth Proportional to 305,496.58, 458,267.35 and 80,855.49

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Solution

The fourth proportional to 305,496.58, 458,267.35 and 80,855.49 is: 121,289.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,496.58 : 458,267.35 = 80,855.49 : x
  2. Step 2: Convert to fraction form
    305,496.58/458,267.35 = 80,855.49/x
  3. Step 3: Cross multiply
    305,496.58x = 458,267.35 × 80,855.49
  4. Step 4: Simplify right side
    305,496.58x = 37,053,430,933.11
  5. Step 5: Solve for x
    x = 37,053,430,933.11/305,496.58
  6. Step 6: Final answer
    x = 121,289.19

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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.