Home / 249,942.75-344,921-136,765.50

Finding the Fourth Proportional to 249,942.75, 344,921 and 136,765.50

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Solution

The fourth proportional to 249,942.75, 344,921 and 136,765.50 is: 188,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,942.75 : 344,921 = 136,765.50 : x
  2. Step 2: Convert to fraction form
    249,942.75/344,921 = 136,765.50/x
  3. Step 3: Cross multiply
    249,942.75x = 344,921 × 136,765.50
  4. Step 4: Simplify right side
    249,942.75x = 47,173,293,025.50
  5. Step 5: Solve for x
    x = 47,173,293,025.50/249,942.75
  6. Step 6: Final answer
    x = 188,736.39

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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.