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Finding the Fourth Proportional to 608,591.64, 912,908.25 and 209,228.97

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Solution

The fourth proportional to 608,591.64, 912,908.25 and 209,228.97 is: 313,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,591.64 : 912,908.25 = 209,228.97 : x
  2. Step 2: Convert to fraction form
    608,591.64/912,908.25 = 209,228.97/x
  3. Step 3: Cross multiply
    608,591.64x = 912,908.25 × 209,228.97
  4. Step 4: Simplify right side
    608,591.64x = 191,006,852,852.00
  5. Step 5: Solve for x
    x = 191,006,852,852.00/608,591.64
  6. Step 6: Final answer
    x = 313,850.60

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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.