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Finding the Fourth Proportional to 220,653.63, 330,980.58 and 154,223.46

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Solution

The fourth proportional to 220,653.63, 330,980.58 and 154,223.46 is: 231,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,653.63 : 330,980.58 = 154,223.46 : x
  2. Step 2: Convert to fraction form
    220,653.63/330,980.58 = 154,223.46/x
  3. Step 3: Cross multiply
    220,653.63x = 330,980.58 × 154,223.46
  4. Step 4: Simplify right side
    220,653.63x = 51,044,970,240.41
  5. Step 5: Solve for x
    x = 51,044,970,240.41/220,653.63
  6. Step 6: Final answer
    x = 231,335.28

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1.5x scale

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.