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Finding the Fourth Proportional to 439,999.68, 659,893.72 and 203,114.80

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Solution

The fourth proportional to 439,999.68, 659,893.72 and 203,114.80 is: 304,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,999.68 : 659,893.72 = 203,114.80 : x
  2. Step 2: Convert to fraction form
    439,999.68/659,893.72 = 203,114.80/x
  3. Step 3: Cross multiply
    439,999.68x = 659,893.72 × 203,114.80
  4. Step 4: Simplify right side
    439,999.68x = 134,034,180,959.06
  5. Step 5: Solve for x
    x = 134,034,180,959.06/439,999.68
  6. Step 6: Final answer
    x = 304,623.36

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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.