Home / 212,261.31-292,920.57-127,378.44

Finding the Fourth Proportional to 212,261.31, 292,920.57 and 127,378.44

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Solution

The fourth proportional to 212,261.31, 292,920.57 and 127,378.44 is: 175,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,261.31 : 292,920.57 = 127,378.44 : x
  2. Step 2: Convert to fraction form
    212,261.31/292,920.57 = 127,378.44/x
  3. Step 3: Cross multiply
    212,261.31x = 292,920.57 × 127,378.44
  4. Step 4: Simplify right side
    212,261.31x = 37,311,765,250.51
  5. Step 5: Solve for x
    x = 37,311,765,250.51/212,261.31
  6. Step 6: Final answer
    x = 175,782.22

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1.5x scale

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.