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Finding the Fourth Proportional to 505,354.80, 758,032.20 and 239,634.30

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Solution

The fourth proportional to 505,354.80, 758,032.20 and 239,634.30 is: 359,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,354.80 : 758,032.20 = 239,634.30 : x
  2. Step 2: Convert to fraction form
    505,354.80/758,032.20 = 239,634.30/x
  3. Step 3: Cross multiply
    505,354.80x = 758,032.20 × 239,634.30
  4. Step 4: Simplify right side
    505,354.80x = 181,650,515,624.46
  5. Step 5: Solve for x
    x = 181,650,515,624.46/505,354.80
  6. Step 6: Final answer
    x = 359,451.45

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Similar ratio
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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.