Home / 208,520.25-287,732.19-148,068.87

Finding the Fourth Proportional to 208,520.25, 287,732.19 and 148,068.87

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Solution

The fourth proportional to 208,520.25, 287,732.19 and 148,068.87 is: 204,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,520.25 : 287,732.19 = 148,068.87 : x
  2. Step 2: Convert to fraction form
    208,520.25/287,732.19 = 148,068.87/x
  3. Step 3: Cross multiply
    208,520.25x = 287,732.19 × 148,068.87
  4. Step 4: Simplify right side
    208,520.25x = 42,604,180,235.93
  5. Step 5: Solve for x
    x = 42,604,180,235.93/208,520.25
  6. Step 6: Final answer
    x = 204,316.75

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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.