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Finding the Fourth Proportional to 299,440.60, 449,379.60 and 210,867.10

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Solution

The fourth proportional to 299,440.60, 449,379.60 and 210,867.10 is: 316,454.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,440.60 : 449,379.60 = 210,867.10 : x
  2. Step 2: Convert to fraction form
    299,440.60/449,379.60 = 210,867.10/x
  3. Step 3: Cross multiply
    299,440.60x = 449,379.60 × 210,867.10
  4. Step 4: Simplify right side
    299,440.60x = 94,759,373,051.16
  5. Step 5: Solve for x
    x = 94,759,373,051.16/299,440.60
  6. Step 6: Final answer
    x = 316,454.66

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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.