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Finding the Fourth Proportional to 202,140.60, 303,210.90 and 70,812.60

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Solution

The fourth proportional to 202,140.60, 303,210.90 and 70,812.60 is: 106,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,140.60 : 303,210.90 = 70,812.60 : x
  2. Step 2: Convert to fraction form
    202,140.60/303,210.90 = 70,812.60/x
  3. Step 3: Cross multiply
    202,140.60x = 303,210.90 × 70,812.60
  4. Step 4: Simplify right side
    202,140.60x = 21,471,152,177.34
  5. Step 5: Solve for x
    x = 21,471,152,177.34/202,140.60
  6. Step 6: Final answer
    x = 106,218.90

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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.