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Finding the Fourth Proportional to 432,466.80, 648,181.80 and 221,996.40

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Solution

The fourth proportional to 432,466.80, 648,181.80 and 221,996.40 is: 332,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,466.80 : 648,181.80 = 221,996.40 : x
  2. Step 2: Convert to fraction form
    432,466.80/648,181.80 = 221,996.40/x
  3. Step 3: Cross multiply
    432,466.80x = 648,181.80 × 221,996.40
  4. Step 4: Simplify right side
    432,466.80x = 143,894,026,145.52
  5. Step 5: Solve for x
    x = 143,894,026,145.52/432,466.80
  6. Step 6: Final answer
    x = 332,728.49

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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.