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Finding the Fourth Proportional to 221,352.35, 330,302.11 and 197,495.90

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Solution

The fourth proportional to 221,352.35, 330,302.11 and 197,495.90 is: 294,703.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,352.35 : 330,302.11 = 197,495.90 : x
  2. Step 2: Convert to fraction form
    221,352.35/330,302.11 = 197,495.90/x
  3. Step 3: Cross multiply
    221,352.35x = 330,302.11 × 197,495.90
  4. Step 4: Simplify right side
    221,352.35x = 65,233,312,486.35
  5. Step 5: Solve for x
    x = 65,233,312,486.35/221,352.35
  6. Step 6: Final answer
    x = 294,703.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.