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Finding the Fourth Proportional to 220,798.96, 330,181.08 and 163,980.16

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Solution

The fourth proportional to 220,798.96, 330,181.08 and 163,980.16 is: 245,214.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,798.96 : 330,181.08 = 163,980.16 : x
  2. Step 2: Convert to fraction form
    220,798.96/330,181.08 = 163,980.16/x
  3. Step 3: Cross multiply
    220,798.96x = 330,181.08 × 163,980.16
  4. Step 4: Simplify right side
    220,798.96x = 54,143,146,327.37
  5. Step 5: Solve for x
    x = 54,143,146,327.37/220,798.96
  6. Step 6: Final answer
    x = 245,214.68

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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.