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Finding the Fourth Proportional to 664,371.60, 996,395.40 and 191,007.60

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Solution

The fourth proportional to 664,371.60, 996,395.40 and 191,007.60 is: 286,464.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,371.60 : 996,395.40 = 191,007.60 : x
  2. Step 2: Convert to fraction form
    664,371.60/996,395.40 = 191,007.60/x
  3. Step 3: Cross multiply
    664,371.60x = 996,395.40 × 191,007.60
  4. Step 4: Simplify right side
    664,371.60x = 190,319,094,005.04
  5. Step 5: Solve for x
    x = 190,319,094,005.04/664,371.60
  6. Step 6: Final answer
    x = 286,464.82

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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.