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Finding the Fourth Proportional to 249,684.28, 344,564.28 and 136,507

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Solution

The fourth proportional to 249,684.28, 344,564.28 and 136,507 is: 188,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,684.28 : 344,564.28 = 136,507 : x
  2. Step 2: Convert to fraction form
    249,684.28/344,564.28 = 136,507/x
  3. Step 3: Cross multiply
    249,684.28x = 344,564.28 × 136,507
  4. Step 4: Simplify right side
    249,684.28x = 47,035,436,169.96
  5. Step 5: Solve for x
    x = 47,035,436,169.96/249,684.28
  6. Step 6: Final answer
    x = 188,379.65

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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.