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Finding the Fourth Proportional to 625,328.81, 937,763.45 and 214,881.72

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Solution

The fourth proportional to 625,328.81, 937,763.45 and 214,881.72 is: 322,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,328.81 : 937,763.45 = 214,881.72 : x
  2. Step 2: Convert to fraction form
    625,328.81/937,763.45 = 214,881.72/x
  3. Step 3: Cross multiply
    625,328.81x = 937,763.45 × 214,881.72
  4. Step 4: Simplify right side
    625,328.81x = 201,508,222,014.73
  5. Step 5: Solve for x
    x = 201,508,222,014.73/625,328.81
  6. Step 6: Final answer
    x = 322,243.63

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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.