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Finding the Fourth Proportional to 315,496.23, 435,394.41 and 179,549.73

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Solution

The fourth proportional to 315,496.23, 435,394.41 and 179,549.73 is: 247,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,496.23 : 435,394.41 = 179,549.73 : x
  2. Step 2: Convert to fraction form
    315,496.23/435,394.41 = 179,549.73/x
  3. Step 3: Cross multiply
    315,496.23x = 435,394.41 × 179,549.73
  4. Step 4: Simplify right side
    315,496.23x = 78,174,948,759.01
  5. Step 5: Solve for x
    x = 78,174,948,759.01/315,496.23
  6. Step 6: Final answer
    x = 247,784.10

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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.