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Finding the Fourth Proportional to 249,978.25, 344,969.99 and 136,801

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Solution

The fourth proportional to 249,978.25, 344,969.99 and 136,801 is: 188,785.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,978.25 : 344,969.99 = 136,801 : x
  2. Step 2: Convert to fraction form
    249,978.25/344,969.99 = 136,801/x
  3. Step 3: Cross multiply
    249,978.25x = 344,969.99 × 136,801
  4. Step 4: Simplify right side
    249,978.25x = 47,192,239,601.99
  5. Step 5: Solve for x
    x = 47,192,239,601.99/249,978.25
  6. Step 6: Final answer
    x = 188,785.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.