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Finding the Fourth Proportional to 630,286.71, 945,487.77 and 251,115.58

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Solution

The fourth proportional to 630,286.71, 945,487.77 and 251,115.58 is: 376,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,286.71 : 945,487.77 = 251,115.58 : x
  2. Step 2: Convert to fraction form
    630,286.71/945,487.77 = 251,115.58/x
  3. Step 3: Cross multiply
    630,286.71x = 945,487.77 × 251,115.58
  4. Step 4: Simplify right side
    630,286.71x = 237,426,709,746.46
  5. Step 5: Solve for x
    x = 237,426,709,746.46/630,286.71
  6. Step 6: Final answer
    x = 376,696.36

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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.