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Finding the Fourth Proportional to 345,907.86, 477,364.68 and 200,702.69

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Solution

The fourth proportional to 345,907.86, 477,364.68 and 200,702.69 is: 276,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,907.86 : 477,364.68 = 200,702.69 : x
  2. Step 2: Convert to fraction form
    345,907.86/477,364.68 = 200,702.69/x
  3. Step 3: Cross multiply
    345,907.86x = 477,364.68 × 200,702.69
  4. Step 4: Simplify right side
    345,907.86x = 95,808,373,000.17
  5. Step 5: Solve for x
    x = 95,808,373,000.17/345,907.86
  6. Step 6: Final answer
    x = 276,976.57

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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.