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Finding the Fourth Proportional to 645,797.60, 968,171.51 and 225,368.72

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Solution

The fourth proportional to 645,797.60, 968,171.51 and 225,368.72 is: 337,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,797.60 : 968,171.51 = 225,368.72 : x
  2. Step 2: Convert to fraction form
    645,797.60/968,171.51 = 225,368.72/x
  3. Step 3: Cross multiply
    645,797.60x = 968,171.51 × 225,368.72
  4. Step 4: Simplify right side
    645,797.60x = 218,195,567,981.47
  5. Step 5: Solve for x
    x = 218,195,567,981.47/645,797.60
  6. Step 6: Final answer
    x = 337,869.90

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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.