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Finding the Fourth Proportional to 302,021.60, 452,917.20 and 91,589.60

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Solution

The fourth proportional to 302,021.60, 452,917.20 and 91,589.60 is: 137,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,021.60 : 452,917.20 = 91,589.60 : x
  2. Step 2: Convert to fraction form
    302,021.60/452,917.20 = 91,589.60/x
  3. Step 3: Cross multiply
    302,021.60x = 452,917.20 × 91,589.60
  4. Step 4: Simplify right side
    302,021.60x = 41,482,505,181.12
  5. Step 5: Solve for x
    x = 41,482,505,181.12/302,021.60
  6. Step 6: Final answer
    x = 137,349.47

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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.