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Finding the Fourth Proportional to 397,577.69, 548,644.72 and 216,284.96

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Solution

The fourth proportional to 397,577.69, 548,644.72 and 216,284.96 is: 298,466.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,577.69 : 548,644.72 = 216,284.96 : x
  2. Step 2: Convert to fraction form
    397,577.69/548,644.72 = 216,284.96/x
  3. Step 3: Cross multiply
    397,577.69x = 548,644.72 × 216,284.96
  4. Step 4: Simplify right side
    397,577.69x = 118,663,600,404.48
  5. Step 5: Solve for x
    x = 118,663,600,404.48/397,577.69
  6. Step 6: Final answer
    x = 298,466.45

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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.