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Finding the Fourth Proportional to 220,803.63, 331,210.91 and 80,562.25

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Solution

The fourth proportional to 220,803.63, 331,210.91 and 80,562.25 is: 120,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,803.63 : 331,210.91 = 80,562.25 : x
  2. Step 2: Convert to fraction form
    220,803.63/331,210.91 = 80,562.25/x
  3. Step 3: Cross multiply
    220,803.63x = 331,210.91 × 80,562.25
  4. Step 4: Simplify right side
    220,803.63x = 26,683,095,731.34
  5. Step 5: Solve for x
    x = 26,683,095,731.34/220,803.63
  6. Step 6: Final answer
    x = 120,845.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.