Home / 208,285.20-312,427.80-50,513.40

Finding the Fourth Proportional to 208,285.20, 312,427.80 and 50,513.40

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Solution

The fourth proportional to 208,285.20, 312,427.80 and 50,513.40 is: 75,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,285.20 : 312,427.80 = 50,513.40 : x
  2. Step 2: Convert to fraction form
    208,285.20/312,427.80 = 50,513.40/x
  3. Step 3: Cross multiply
    208,285.20x = 312,427.80 × 50,513.40
  4. Step 4: Simplify right side
    208,285.20x = 15,781,790,432.52
  5. Step 5: Solve for x
    x = 15,781,790,432.52/208,285.20
  6. Step 6: Final answer
    x = 75,770.10

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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.