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Finding the Fourth Proportional to 218,155.62, 300,806.54 and 153,604.22

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Solution

The fourth proportional to 218,155.62, 300,806.54 and 153,604.22 is: 211,799.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,155.62 : 300,806.54 = 153,604.22 : x
  2. Step 2: Convert to fraction form
    218,155.62/300,806.54 = 153,604.22/x
  3. Step 3: Cross multiply
    218,155.62x = 300,806.54 × 153,604.22
  4. Step 4: Simplify right side
    218,155.62x = 46,205,153,947.60
  5. Step 5: Solve for x
    x = 46,205,153,947.60/218,155.62
  6. Step 6: Final answer
    x = 211,799.05

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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.