Home / 222,787.12-307,462.50-127,291.76

Finding the Fourth Proportional to 222,787.12, 307,462.50 and 127,291.76

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Solution

The fourth proportional to 222,787.12, 307,462.50 and 127,291.76 is: 175,671.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,787.12 : 307,462.50 = 127,291.76 : x
  2. Step 2: Convert to fraction form
    222,787.12/307,462.50 = 127,291.76/x
  3. Step 3: Cross multiply
    222,787.12x = 307,462.50 × 127,291.76
  4. Step 4: Simplify right side
    222,787.12x = 39,137,442,759
  5. Step 5: Solve for x
    x = 39,137,442,759/222,787.12
  6. Step 6: Final answer
    x = 175,671.93

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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.