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Finding the Fourth Proportional to 247,309.20, 370,890.90 and 97,499.70

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Solution

The fourth proportional to 247,309.20, 370,890.90 and 97,499.70 is: 146,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,309.20 : 370,890.90 = 97,499.70 : x
  2. Step 2: Convert to fraction form
    247,309.20/370,890.90 = 97,499.70/x
  3. Step 3: Cross multiply
    247,309.20x = 370,890.90 × 97,499.70
  4. Step 4: Simplify right side
    247,309.20x = 36,161,751,482.73
  5. Step 5: Solve for x
    x = 36,161,751,482.73/247,309.20
  6. Step 6: Final answer
    x = 146,220.81

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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.