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Finding the Fourth Proportional to 388,347.58, 536,085.48 and 261,097

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Solution

The fourth proportional to 388,347.58, 536,085.48 and 261,097 is: 360,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,347.58 : 536,085.48 = 261,097 : x
  2. Step 2: Convert to fraction form
    388,347.58/536,085.48 = 261,097/x
  3. Step 3: Cross multiply
    388,347.58x = 536,085.48 × 261,097
  4. Step 4: Simplify right side
    388,347.58x = 139,970,310,571.56
  5. Step 5: Solve for x
    x = 139,970,310,571.56/388,347.58
  6. Step 6: Final answer
    x = 360,425.35

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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.