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Finding the Fourth Proportional to 505,698.48, 758,658.51 and 190,155.39

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Solution

The fourth proportional to 505,698.48, 758,658.51 and 190,155.39 is: 285,274.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,698.48 : 758,658.51 = 190,155.39 : x
  2. Step 2: Convert to fraction form
    505,698.48/758,658.51 = 190,155.39/x
  3. Step 3: Cross multiply
    505,698.48x = 758,658.51 × 190,155.39
  4. Step 4: Simplify right side
    505,698.48x = 144,263,004,845.87
  5. Step 5: Solve for x
    x = 144,263,004,845.87/505,698.48
  6. Step 6: Final answer
    x = 285,274.74

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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.