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Finding the Fourth Proportional to 295,996.80, 443,995.20 and 288,998.40

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Solution

The fourth proportional to 295,996.80, 443,995.20 and 288,998.40 is: 433,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,996.80 : 443,995.20 = 288,998.40 : x
  2. Step 2: Convert to fraction form
    295,996.80/443,995.20 = 288,998.40/x
  3. Step 3: Cross multiply
    295,996.80x = 443,995.20 × 288,998.40
  4. Step 4: Simplify right side
    295,996.80x = 128,313,902,407.68
  5. Step 5: Solve for x
    x = 128,313,902,407.68/295,996.80
  6. Step 6: Final answer
    x = 433,497.60

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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.