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Finding the Fourth Proportional to 249,097.94, 343,755.15 and 135,920.69

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Solution

The fourth proportional to 249,097.94, 343,755.15 and 135,920.69 is: 187,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,097.94 : 343,755.15 = 135,920.69 : x
  2. Step 2: Convert to fraction form
    249,097.94/343,755.15 = 135,920.69/x
  3. Step 3: Cross multiply
    249,097.94x = 343,755.15 × 135,920.69
  4. Step 4: Simplify right side
    249,097.94x = 46,723,437,179.05
  5. Step 5: Solve for x
    x = 46,723,437,179.05/249,097.94
  6. Step 6: Final answer
    x = 187,570.55

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1.5x scale

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.