Home / 208,157.52-312,237.09-50,385.72

Finding the Fourth Proportional to 208,157.52, 312,237.09 and 50,385.72

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Solution

The fourth proportional to 208,157.52, 312,237.09 and 50,385.72 is: 75,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,157.52 : 312,237.09 = 50,385.72 : x
  2. Step 2: Convert to fraction form
    208,157.52/312,237.09 = 50,385.72/x
  3. Step 3: Cross multiply
    208,157.52x = 312,237.09 × 50,385.72
  4. Step 4: Simplify right side
    208,157.52x = 15,732,290,590.35
  5. Step 5: Solve for x
    x = 15,732,290,590.35/208,157.52
  6. Step 6: Final answer
    x = 75,578.78

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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.