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Finding the Fourth Proportional to 292,662.80, 438,994.24 and 115,072.80

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Solution

The fourth proportional to 292,662.80, 438,994.24 and 115,072.80 is: 172,609.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,662.80 : 438,994.24 = 115,072.80 : x
  2. Step 2: Convert to fraction form
    292,662.80/438,994.24 = 115,072.80/x
  3. Step 3: Cross multiply
    292,662.80x = 438,994.24 × 115,072.80
  4. Step 4: Simplify right side
    292,662.80x = 50,516,296,380.67
  5. Step 5: Solve for x
    x = 50,516,296,380.67/292,662.80
  6. Step 6: Final answer
    x = 172,609.22

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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.