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Finding the Fourth Proportional to 368,380.88, 508,364.80 and 207,236

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Solution

The fourth proportional to 368,380.88, 508,364.80 and 207,236 is: 285,985.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,380.88 : 508,364.80 = 207,236 : x
  2. Step 2: Convert to fraction form
    368,380.88/508,364.80 = 207,236/x
  3. Step 3: Cross multiply
    368,380.88x = 508,364.80 × 207,236
  4. Step 4: Simplify right side
    368,380.88x = 105,351,487,692.80
  5. Step 5: Solve for x
    x = 105,351,487,692.80/368,380.88
  6. Step 6: Final answer
    x = 285,985.22

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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.