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Finding the Fourth Proportional to 210,226.80, 315,340.20 and 163,225.20

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Solution

The fourth proportional to 210,226.80, 315,340.20 and 163,225.20 is: 244,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,226.80 : 315,340.20 = 163,225.20 : x
  2. Step 2: Convert to fraction form
    210,226.80/315,340.20 = 163,225.20/x
  3. Step 3: Cross multiply
    210,226.80x = 315,340.20 × 163,225.20
  4. Step 4: Simplify right side
    210,226.80x = 51,471,467,213.04
  5. Step 5: Solve for x
    x = 51,471,467,213.04/210,226.80
  6. Step 6: Final answer
    x = 244,837.80

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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.