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Finding the Fourth Proportional to 388,349.58, 536,088.24 and 261,099

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Solution

The fourth proportional to 388,349.58, 536,088.24 and 261,099 is: 360,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,349.58 : 536,088.24 = 261,099 : x
  2. Step 2: Convert to fraction form
    388,349.58/536,088.24 = 261,099/x
  3. Step 3: Cross multiply
    388,349.58x = 536,088.24 × 261,099
  4. Step 4: Simplify right side
    388,349.58x = 139,972,103,375.76
  5. Step 5: Solve for x
    x = 139,972,103,375.76/388,349.58
  6. Step 6: Final answer
    x = 360,428.11

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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.