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Finding the Fourth Proportional to 253,171.20, 379,424.58 and 186,298.20

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Solution

The fourth proportional to 253,171.20, 379,424.58 and 186,298.20 is: 279,202.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,171.20 : 379,424.58 = 186,298.20 : x
  2. Step 2: Convert to fraction form
    253,171.20/379,424.58 = 186,298.20/x
  3. Step 3: Cross multiply
    253,171.20x = 379,424.58 × 186,298.20
  4. Step 4: Simplify right side
    253,171.20x = 70,686,116,289.76
  5. Step 5: Solve for x
    x = 70,686,116,289.76/253,171.20
  6. Step 6: Final answer
    x = 279,202.83

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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.