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Finding the Fourth Proportional to 220,565.40, 330,848.10 and 200,226.30

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Solution

The fourth proportional to 220,565.40, 330,848.10 and 200,226.30 is: 300,339.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,565.40 : 330,848.10 = 200,226.30 : x
  2. Step 2: Convert to fraction form
    220,565.40/330,848.10 = 200,226.30/x
  3. Step 3: Cross multiply
    220,565.40x = 330,848.10 × 200,226.30
  4. Step 4: Simplify right side
    220,565.40x = 66,244,490,925.03
  5. Step 5: Solve for x
    x = 66,244,490,925.03/220,565.40
  6. Step 6: Final answer
    x = 300,339.45

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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.