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Finding the Fourth Proportional to 315,365.52, 435,300.96 and 194,544.48

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Solution

The fourth proportional to 315,365.52, 435,300.96 and 194,544.48 is: 268,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,365.52 : 435,300.96 = 194,544.48 : x
  2. Step 2: Convert to fraction form
    315,365.52/435,300.96 = 194,544.48/x
  3. Step 3: Cross multiply
    315,365.52x = 435,300.96 × 194,544.48
  4. Step 4: Simplify right side
    315,365.52x = 84,685,398,906.70
  5. Step 5: Solve for x
    x = 84,685,398,906.70/315,365.52
  6. Step 6: Final answer
    x = 268,530.94

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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.