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Finding the Fourth Proportional to 270,075.57, 372,708.20 and 149,219.64

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Solution

The fourth proportional to 270,075.57, 372,708.20 and 149,219.64 is: 205,925.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,075.57 : 372,708.20 = 149,219.64 : x
  2. Step 2: Convert to fraction form
    270,075.57/372,708.20 = 149,219.64/x
  3. Step 3: Cross multiply
    270,075.57x = 372,708.20 × 149,219.64
  4. Step 4: Simplify right side
    270,075.57x = 55,615,382,682.95
  5. Step 5: Solve for x
    x = 55,615,382,682.95/270,075.57
  6. Step 6: Final answer
    x = 205,925.26

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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.