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Finding the Fourth Proportional to 220,205.70, 303,863.13 and 152,295.30

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Solution

The fourth proportional to 220,205.70, 303,863.13 and 152,295.30 is: 210,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,205.70 : 303,863.13 = 152,295.30 : x
  2. Step 2: Convert to fraction form
    220,205.70/303,863.13 = 152,295.30/x
  3. Step 3: Cross multiply
    220,205.70x = 303,863.13 × 152,295.30
  4. Step 4: Simplify right side
    220,205.70x = 46,276,926,542.29
  5. Step 5: Solve for x
    x = 46,276,926,542.29/220,205.70
  6. Step 6: Final answer
    x = 210,153.17

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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.