Home / 221,219.52-305,304.84-130,605.36

Finding the Fourth Proportional to 221,219.52, 305,304.84 and 130,605.36

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Solution

The fourth proportional to 221,219.52, 305,304.84 and 130,605.36 is: 180,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,219.52 : 305,304.84 = 130,605.36 : x
  2. Step 2: Convert to fraction form
    221,219.52/305,304.84 = 130,605.36/x
  3. Step 3: Cross multiply
    221,219.52x = 305,304.84 × 130,605.36
  4. Step 4: Simplify right side
    221,219.52x = 39,874,448,537.94
  5. Step 5: Solve for x
    x = 39,874,448,537.94/221,219.52
  6. Step 6: Final answer
    x = 180,248.33

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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.