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Finding the Fourth Proportional to 369,390.60, 554,086.05 and 88,907.85

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Solution

The fourth proportional to 369,390.60, 554,086.05 and 88,907.85 is: 133,361.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,390.60 : 554,086.05 = 88,907.85 : x
  2. Step 2: Convert to fraction form
    369,390.60/554,086.05 = 88,907.85/x
  3. Step 3: Cross multiply
    369,390.60x = 554,086.05 × 88,907.85
  4. Step 4: Simplify right side
    369,390.60x = 49,262,599,420.49
  5. Step 5: Solve for x
    x = 49,262,599,420.49/369,390.60
  6. Step 6: Final answer
    x = 133,361.81

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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.