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Finding the Fourth Proportional to 645,797.79, 968,171.79 and 225,368.91

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Solution

The fourth proportional to 645,797.79, 968,171.79 and 225,368.91 is: 337,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,797.79 : 968,171.79 = 225,368.91 : x
  2. Step 2: Convert to fraction form
    645,797.79/968,171.79 = 225,368.91/x
  3. Step 3: Cross multiply
    645,797.79x = 968,171.79 × 225,368.91
  4. Step 4: Simplify right side
    645,797.79x = 218,195,821,005.05
  5. Step 5: Solve for x
    x = 218,195,821,005.05/645,797.79
  6. Step 6: Final answer
    x = 337,870.19

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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.