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Finding the Fourth Proportional to 368,335.80, 551,985.30 and 272,820.60

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Solution

The fourth proportional to 368,335.80, 551,985.30 and 272,820.60 is: 408,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,335.80 : 551,985.30 = 272,820.60 : x
  2. Step 2: Convert to fraction form
    368,335.80/551,985.30 = 272,820.60/x
  3. Step 3: Cross multiply
    368,335.80x = 551,985.30 × 272,820.60
  4. Step 4: Simplify right side
    368,335.80x = 150,592,960,737.18
  5. Step 5: Solve for x
    x = 150,592,960,737.18/368,335.80
  6. Step 6: Final answer
    x = 408,846.93

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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.