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Finding the Fourth Proportional to 202,319.10, 303,478.65 and 70,991.10

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Solution

The fourth proportional to 202,319.10, 303,478.65 and 70,991.10 is: 106,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,319.10 : 303,478.65 = 70,991.10 : x
  2. Step 2: Convert to fraction form
    202,319.10/303,478.65 = 70,991.10/x
  3. Step 3: Cross multiply
    202,319.10x = 303,478.65 × 70,991.10
  4. Step 4: Simplify right side
    202,319.10x = 21,544,283,190.02
  5. Step 5: Solve for x
    x = 21,544,283,190.02/202,319.10
  6. Step 6: Final answer
    x = 106,486.65

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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.