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Finding the Fourth Proportional to 576,908.40, 865,103.40 and 221,804.40

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Solution

The fourth proportional to 576,908.40, 865,103.40 and 221,804.40 is: 332,606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,908.40 : 865,103.40 = 221,804.40 : x
  2. Step 2: Convert to fraction form
    576,908.40/865,103.40 = 221,804.40/x
  3. Step 3: Cross multiply
    576,908.40x = 865,103.40 × 221,804.40
  4. Step 4: Simplify right side
    576,908.40x = 191,883,740,574.96
  5. Step 5: Solve for x
    x = 191,883,740,574.96/576,908.40
  6. Step 6: Final answer
    x = 332,606.95

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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.