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Finding the Fourth Proportional to 155,435.23, 214,500.63 and 88,367.23

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Solution

The fourth proportional to 155,435.23, 214,500.63 and 88,367.23 is: 121,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,435.23 : 214,500.63 = 88,367.23 : x
  2. Step 2: Convert to fraction form
    155,435.23/214,500.63 = 88,367.23/x
  3. Step 3: Cross multiply
    155,435.23x = 214,500.63 × 88,367.23
  4. Step 4: Simplify right side
    155,435.23x = 18,954,826,506.35
  5. Step 5: Solve for x
    x = 18,954,826,506.35/155,435.23
  6. Step 6: Final answer
    x = 121,946.78

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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.