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Finding the Fourth Proportional to 507,162.33, 699,835.55 and 303,172.74

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Solution

The fourth proportional to 507,162.33, 699,835.55 and 303,172.74 is: 418,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,162.33 : 699,835.55 = 303,172.74 : x
  2. Step 2: Convert to fraction form
    507,162.33/699,835.55 = 303,172.74/x
  3. Step 3: Cross multiply
    507,162.33x = 699,835.55 × 303,172.74
  4. Step 4: Simplify right side
    507,162.33x = 212,171,059,727.04
  5. Step 5: Solve for x
    x = 212,171,059,727.04/507,162.33
  6. Step 6: Final answer
    x = 418,349.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.