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Finding the Fourth Proportional to 220,437.80, 303,914.40 and 159,132.32

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Solution

The fourth proportional to 220,437.80, 303,914.40 and 159,132.32 is: 219,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,437.80 : 303,914.40 = 159,132.32 : x
  2. Step 2: Convert to fraction form
    220,437.80/303,914.40 = 159,132.32/x
  3. Step 3: Cross multiply
    220,437.80x = 303,914.40 × 159,132.32
  4. Step 4: Simplify right side
    220,437.80x = 48,362,603,553.41
  5. Step 5: Solve for x
    x = 48,362,603,553.41/220,437.80
  6. Step 6: Final answer
    x = 219,393.42

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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.