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Finding the Fourth Proportional to 368,389.72, 508,348.74 and 207,212.68

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Solution

The fourth proportional to 368,389.72, 508,348.74 and 207,212.68 is: 285,937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,389.72 : 508,348.74 = 207,212.68 : x
  2. Step 2: Convert to fraction form
    368,389.72/508,348.74 = 207,212.68/x
  3. Step 3: Cross multiply
    368,389.72x = 508,348.74 × 207,212.68
  4. Step 4: Simplify right side
    368,389.72x = 105,336,304,790.02
  5. Step 5: Solve for x
    x = 105,336,304,790.02/368,389.72
  6. Step 6: Final answer
    x = 285,937.15

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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.