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Finding the Fourth Proportional to 208,385.71, 312,578.55 and 96,032.69

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Solution

The fourth proportional to 208,385.71, 312,578.55 and 96,032.69 is: 144,049.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,385.71 : 312,578.55 = 96,032.69 : x
  2. Step 2: Convert to fraction form
    208,385.71/312,578.55 = 96,032.69/x
  3. Step 3: Cross multiply
    208,385.71x = 312,578.55 × 96,032.69
  4. Step 4: Simplify right side
    208,385.71x = 30,017,757,429.91
  5. Step 5: Solve for x
    x = 30,017,757,429.91/208,385.71
  6. Step 6: Final answer
    x = 144,049.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.