Home / 442,811.70-664,217.55-265,518.90

Finding the Fourth Proportional to 442,811.70, 664,217.55 and 265,518.90

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Solution

The fourth proportional to 442,811.70, 664,217.55 and 265,518.90 is: 398,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,811.70 : 664,217.55 = 265,518.90 : x
  2. Step 2: Convert to fraction form
    442,811.70/664,217.55 = 265,518.90/x
  3. Step 3: Cross multiply
    442,811.70x = 664,217.55 × 265,518.90
  4. Step 4: Simplify right side
    442,811.70x = 176,362,313,236.70
  5. Step 5: Solve for x
    x = 176,362,313,236.70/442,811.70
  6. Step 6: Final answer
    x = 398,278.35

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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.