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Finding the Fourth Proportional to 309,246.60, 463,913.10 and 131,752.20

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Solution

The fourth proportional to 309,246.60, 463,913.10 and 131,752.20 is: 197,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,246.60 : 463,913.10 = 131,752.20 : x
  2. Step 2: Convert to fraction form
    309,246.60/463,913.10 = 131,752.20/x
  3. Step 3: Cross multiply
    309,246.60x = 463,913.10 × 131,752.20
  4. Step 4: Simplify right side
    309,246.60x = 61,121,571,533.82
  5. Step 5: Solve for x
    x = 61,121,571,533.82/309,246.60
  6. Step 6: Final answer
    x = 197,646.71

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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.