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Finding the Fourth Proportional to 235,947, 325,606.86 and 135,377.40

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Solution

The fourth proportional to 235,947, 325,606.86 and 135,377.40 is: 186,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,947 : 325,606.86 = 135,377.40 : x
  2. Step 2: Convert to fraction form
    235,947/325,606.86 = 135,377.40/x
  3. Step 3: Cross multiply
    235,947x = 325,606.86 × 135,377.40
  4. Step 4: Simplify right side
    235,947x = 44,079,810,128.96
  5. Step 5: Solve for x
    x = 44,079,810,128.96/235,947
  6. Step 6: Final answer
    x = 186,820.81

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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.