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Finding the Fourth Proportional to 449,404.32, 620,174.16 and 248,196

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Solution

The fourth proportional to 449,404.32, 620,174.16 and 248,196 is: 342,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,404.32 : 620,174.16 = 248,196 : x
  2. Step 2: Convert to fraction form
    449,404.32/620,174.16 = 248,196/x
  3. Step 3: Cross multiply
    449,404.32x = 620,174.16 × 248,196
  4. Step 4: Simplify right side
    449,404.32x = 153,924,745,815.36
  5. Step 5: Solve for x
    x = 153,924,745,815.36/449,404.32
  6. Step 6: Final answer
    x = 342,508.38

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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.