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Finding the Fourth Proportional to 220,216.98, 303,905.07 and 124,722.30

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Solution

The fourth proportional to 220,216.98, 303,905.07 and 124,722.30 is: 172,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,216.98 : 303,905.07 = 124,722.30 : x
  2. Step 2: Convert to fraction form
    220,216.98/303,905.07 = 124,722.30/x
  3. Step 3: Cross multiply
    220,216.98x = 303,905.07 × 124,722.30
  4. Step 4: Simplify right side
    220,216.98x = 37,903,739,312.06
  5. Step 5: Solve for x
    x = 37,903,739,312.06/220,216.98
  6. Step 6: Final answer
    x = 172,119.97

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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.