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Finding the Fourth Proportional to 469,659.60, 648,129.72 and 254,799.60

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Solution

The fourth proportional to 469,659.60, 648,129.72 and 254,799.60 is: 351,623.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,659.60 : 648,129.72 = 254,799.60 : x
  2. Step 2: Convert to fraction form
    469,659.60/648,129.72 = 254,799.60/x
  3. Step 3: Cross multiply
    469,659.60x = 648,129.72 × 254,799.60
  4. Step 4: Simplify right side
    469,659.60x = 165,143,193,404.11
  5. Step 5: Solve for x
    x = 165,143,193,404.11/469,659.60
  6. Step 6: Final answer
    x = 351,623.16

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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.