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Finding the Fourth Proportional to 221,086.20, 330,923.70 and 174,430.20

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Solution

The fourth proportional to 221,086.20, 330,923.70 and 174,430.20 is: 261,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,086.20 : 330,923.70 = 174,430.20 : x
  2. Step 2: Convert to fraction form
    221,086.20/330,923.70 = 174,430.20/x
  3. Step 3: Cross multiply
    221,086.20x = 330,923.70 × 174,430.20
  4. Step 4: Simplify right side
    221,086.20x = 57,723,087,175.74
  5. Step 5: Solve for x
    x = 57,723,087,175.74/221,086.20
  6. Step 6: Final answer
    x = 261,088.60

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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.