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Finding the Fourth Proportional to 666,836.68, 1,000,358.70 and 223,501

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Solution

The fourth proportional to 666,836.68, 1,000,358.70 and 223,501 is: 335,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,836.68 : 1,000,358.70 = 223,501 : x
  2. Step 2: Convert to fraction form
    666,836.68/1,000,358.70 = 223,501/x
  3. Step 3: Cross multiply
    666,836.68x = 1,000,358.70 × 223,501
  4. Step 4: Simplify right side
    666,836.68x = 223,581,169,808.70
  5. Step 5: Solve for x
    x = 223,581,169,808.70/666,836.68
  6. Step 6: Final answer
    x = 335,286.25

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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.