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Finding the Fourth Proportional to 202,157.60, 303,455.10 and 127,362.20

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Solution

The fourth proportional to 202,157.60, 303,455.10 and 127,362.20 is: 191,181.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,157.60 : 303,455.10 = 127,362.20 : x
  2. Step 2: Convert to fraction form
    202,157.60/303,455.10 = 127,362.20/x
  3. Step 3: Cross multiply
    202,157.60x = 303,455.10 × 127,362.20
  4. Step 4: Simplify right side
    202,157.60x = 38,648,709,137.22
  5. Step 5: Solve for x
    x = 38,648,709,137.22/202,157.60
  6. Step 6: Final answer
    x = 191,181.08

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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.