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Finding the Fourth Proportional to 219,329.40, 328,969.80 and 179,817.60

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Solution

The fourth proportional to 219,329.40, 328,969.80 and 179,817.60 is: 269,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,329.40 : 328,969.80 = 179,817.60 : x
  2. Step 2: Convert to fraction form
    219,329.40/328,969.80 = 179,817.60/x
  3. Step 3: Cross multiply
    219,329.40x = 328,969.80 × 179,817.60
  4. Step 4: Simplify right side
    219,329.40x = 59,154,559,908.48
  5. Step 5: Solve for x
    x = 59,154,559,908.48/219,329.40
  6. Step 6: Final answer
    x = 269,706.48

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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.