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Finding the Fourth Proportional to 219,000.80, 328,274.40 and 118,949.60

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Solution

The fourth proportional to 219,000.80, 328,274.40 and 118,949.60 is: 178,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,000.80 : 328,274.40 = 118,949.60 : x
  2. Step 2: Convert to fraction form
    219,000.80/328,274.40 = 118,949.60/x
  3. Step 3: Cross multiply
    219,000.80x = 328,274.40 × 118,949.60
  4. Step 4: Simplify right side
    219,000.80x = 39,048,108,570.24
  5. Step 5: Solve for x
    x = 39,048,108,570.24/219,000.80
  6. Step 6: Final answer
    x = 178,301.21

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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.