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Finding the Fourth Proportional to 368,283.21, 508,225.94 and 207,138.27

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Solution

The fourth proportional to 368,283.21, 508,225.94 and 207,138.27 is: 285,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,283.21 : 508,225.94 = 207,138.27 : x
  2. Step 2: Convert to fraction form
    368,283.21/508,225.94 = 207,138.27/x
  3. Step 3: Cross multiply
    368,283.21x = 508,225.94 × 207,138.27
  4. Step 4: Simplify right side
    368,283.21x = 105,273,038,403.90
  5. Step 5: Solve for x
    x = 105,273,038,403.90/368,283.21
  6. Step 6: Final answer
    x = 285,848.05

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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.