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Finding the Fourth Proportional to 251,804.20, 377,706.30 and 145,370.20

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Solution

The fourth proportional to 251,804.20, 377,706.30 and 145,370.20 is: 218,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,804.20 : 377,706.30 = 145,370.20 : x
  2. Step 2: Convert to fraction form
    251,804.20/377,706.30 = 145,370.20/x
  3. Step 3: Cross multiply
    251,804.20x = 377,706.30 × 145,370.20
  4. Step 4: Simplify right side
    251,804.20x = 54,907,240,372.26
  5. Step 5: Solve for x
    x = 54,907,240,372.26/251,804.20
  6. Step 6: Final answer
    x = 218,055.30

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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.