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Finding the Fourth Proportional to 220,223.66, 330,384.62 and 70,472.95

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Solution

The fourth proportional to 220,223.66, 330,384.62 and 70,472.95 is: 105,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,223.66 : 330,384.62 = 70,472.95 : x
  2. Step 2: Convert to fraction form
    220,223.66/330,384.62 = 70,472.95/x
  3. Step 3: Cross multiply
    220,223.66x = 330,384.62 × 70,472.95
  4. Step 4: Simplify right side
    220,223.66x = 23,283,178,156.25
  5. Step 5: Solve for x
    x = 23,283,178,156.25/220,223.66
  6. Step 6: Final answer
    x = 105,725.14

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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.