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Finding the Fourth Proportional to 444,493.80, 666,740.70 and 245,428.20

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Solution

The fourth proportional to 444,493.80, 666,740.70 and 245,428.20 is: 368,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,493.80 : 666,740.70 = 245,428.20 : x
  2. Step 2: Convert to fraction form
    444,493.80/666,740.70 = 245,428.20/x
  3. Step 3: Cross multiply
    444,493.80x = 666,740.70 × 245,428.20
  4. Step 4: Simplify right side
    444,493.80x = 163,636,969,867.74
  5. Step 5: Solve for x
    x = 163,636,969,867.74/444,493.80
  6. Step 6: Final answer
    x = 368,142.30

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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.