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Finding the Fourth Proportional to 255,249.87, 351,485.15 and 249,585.74

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Solution

The fourth proportional to 255,249.87, 351,485.15 and 249,585.74 is: 343,685.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,249.87 : 351,485.15 = 249,585.74 : x
  2. Step 2: Convert to fraction form
    255,249.87/351,485.15 = 249,585.74/x
  3. Step 3: Cross multiply
    255,249.87x = 351,485.15 × 249,585.74
  4. Step 4: Simplify right side
    255,249.87x = 87,725,680,892.55
  5. Step 5: Solve for x
    x = 87,725,680,892.55/255,249.87
  6. Step 6: Final answer
    x = 343,685.51

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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.