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Finding the Fourth Proportional to 201,403.64, 302,187.56 and 129,437.16

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Solution

The fourth proportional to 201,403.64, 302,187.56 and 129,437.16 is: 194,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,403.64 : 302,187.56 = 129,437.16 : x
  2. Step 2: Convert to fraction form
    201,403.64/302,187.56 = 129,437.16/x
  3. Step 3: Cross multiply
    201,403.64x = 302,187.56 × 129,437.16
  4. Step 4: Simplify right side
    201,403.64x = 39,114,298,906.54
  5. Step 5: Solve for x
    x = 39,114,298,906.54/201,403.64
  6. Step 6: Final answer
    x = 194,208.51

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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.