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Finding the Fourth Proportional to 221,201.40, 331,802.10 and 73,457.40

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Solution

The fourth proportional to 221,201.40, 331,802.10 and 73,457.40 is: 110,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,201.40 : 331,802.10 = 73,457.40 : x
  2. Step 2: Convert to fraction form
    221,201.40/331,802.10 = 73,457.40/x
  3. Step 3: Cross multiply
    221,201.40x = 331,802.10 × 73,457.40
  4. Step 4: Simplify right side
    221,201.40x = 24,373,319,580.54
  5. Step 5: Solve for x
    x = 24,373,319,580.54/221,201.40
  6. Step 6: Final answer
    x = 110,186.10

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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.