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Finding the Fourth Proportional to 291,519.60, 437,473.80 and 133,666.80

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Solution

The fourth proportional to 291,519.60, 437,473.80 and 133,666.80 is: 200,589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,519.60 : 437,473.80 = 133,666.80 : x
  2. Step 2: Convert to fraction form
    291,519.60/437,473.80 = 133,666.80/x
  3. Step 3: Cross multiply
    291,519.60x = 437,473.80 × 133,666.80
  4. Step 4: Simplify right side
    291,519.60x = 58,475,722,929.84
  5. Step 5: Solve for x
    x = 58,475,722,929.84/291,519.60
  6. Step 6: Final answer
    x = 200,589.34

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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.