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Finding the Fourth Proportional to 315,185.99, 434,938.95 and 179,200.76

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Solution

The fourth proportional to 315,185.99, 434,938.95 and 179,200.76 is: 247,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,185.99 : 434,938.95 = 179,200.76 : x
  2. Step 2: Convert to fraction form
    315,185.99/434,938.95 = 179,200.76/x
  3. Step 3: Cross multiply
    315,185.99x = 434,938.95 × 179,200.76
  4. Step 4: Simplify right side
    315,185.99x = 77,941,388,218.91
  5. Step 5: Solve for x
    x = 77,941,388,218.91/315,185.99
  6. Step 6: Final answer
    x = 247,286.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.