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Finding the Fourth Proportional to 249,900.68, 344,868 and 136,725.88

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Solution

The fourth proportional to 249,900.68, 344,868 and 136,725.88 is: 188,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,900.68 : 344,868 = 136,725.88 : x
  2. Step 2: Convert to fraction form
    249,900.68/344,868 = 136,725.88/x
  3. Step 3: Cross multiply
    249,900.68x = 344,868 × 136,725.88
  4. Step 4: Simplify right side
    249,900.68x = 47,152,380,783.84
  5. Step 5: Solve for x
    x = 47,152,380,783.84/249,900.68
  6. Step 6: Final answer
    x = 188,684.48

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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.