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Finding the Fourth Proportional to 351,879.80, 484,942.95 and 249,909.71

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Solution

The fourth proportional to 351,879.80, 484,942.95 and 249,909.71 is: 344,412.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,879.80 : 484,942.95 = 249,909.71 : x
  2. Step 2: Convert to fraction form
    351,879.80/484,942.95 = 249,909.71/x
  3. Step 3: Cross multiply
    351,879.80x = 484,942.95 × 249,909.71
  4. Step 4: Simplify right side
    351,879.80x = 121,191,949,576.33
  5. Step 5: Solve for x
    x = 121,191,949,576.33/351,879.80
  6. Step 6: Final answer
    x = 344,412.93

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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.