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Finding the Fourth Proportional to 208,023.70, 312,210.60 and 194,901.70

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Solution

The fourth proportional to 208,023.70, 312,210.60 and 194,901.70 is: 292,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,023.70 : 312,210.60 = 194,901.70 : x
  2. Step 2: Convert to fraction form
    208,023.70/312,210.60 = 194,901.70/x
  3. Step 3: Cross multiply
    208,023.70x = 312,210.60 × 194,901.70
  4. Step 4: Simplify right side
    208,023.70x = 60,850,376,698.02
  5. Step 5: Solve for x
    x = 60,850,376,698.02/208,023.70
  6. Step 6: Final answer
    x = 292,516.56

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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.