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Finding the Fourth Proportional to 315,494.96, 435,421.24 and 179,561.97

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Solution

The fourth proportional to 315,494.96, 435,421.24 and 179,561.97 is: 247,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,494.96 : 435,421.24 = 179,561.97 : x
  2. Step 2: Convert to fraction form
    315,494.96/435,421.24 = 179,561.97/x
  3. Step 3: Cross multiply
    315,494.96x = 435,421.24 × 179,561.97
  4. Step 4: Simplify right side
    315,494.96x = 78,185,095,185.34
  5. Step 5: Solve for x
    x = 78,185,095,185.34/315,494.96
  6. Step 6: Final answer
    x = 247,817.26

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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.