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Finding the Fourth Proportional to 239,968.80, 359,434.80 and 198,496.80

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Solution

The fourth proportional to 239,968.80, 359,434.80 and 198,496.80 is: 297,316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,968.80 : 359,434.80 = 198,496.80 : x
  2. Step 2: Convert to fraction form
    239,968.80/359,434.80 = 198,496.80/x
  3. Step 3: Cross multiply
    239,968.80x = 359,434.80 × 198,496.80
  4. Step 4: Simplify right side
    239,968.80x = 71,346,657,608.64
  5. Step 5: Solve for x
    x = 71,346,657,608.64/239,968.80
  6. Step 6: Final answer
    x = 297,316.39

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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.