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Finding the Fourth Proportional to 202,157.40, 303,272.55 and 83,840.70

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Solution

The fourth proportional to 202,157.40, 303,272.55 and 83,840.70 is: 125,776.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,157.40 : 303,272.55 = 83,840.70 : x
  2. Step 2: Convert to fraction form
    202,157.40/303,272.55 = 83,840.70/x
  3. Step 3: Cross multiply
    202,157.40x = 303,272.55 × 83,840.70
  4. Step 4: Simplify right side
    202,157.40x = 25,426,582,882.79
  5. Step 5: Solve for x
    x = 25,426,582,882.79/202,157.40
  6. Step 6: Final answer
    x = 125,776.17

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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.