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Finding the Fourth Proportional to 219,813.60, 330,109.20 and 170,014.80

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Solution

The fourth proportional to 219,813.60, 330,109.20 and 170,014.80 is: 255,322.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,813.60 : 330,109.20 = 170,014.80 : x
  2. Step 2: Convert to fraction form
    219,813.60/330,109.20 = 170,014.80/x
  3. Step 3: Cross multiply
    219,813.60x = 330,109.20 × 170,014.80
  4. Step 4: Simplify right side
    219,813.60x = 56,123,449,616.16
  5. Step 5: Solve for x
    x = 56,123,449,616.16/219,813.60
  6. Step 6: Final answer
    x = 255,322.92

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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.