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Finding the Fourth Proportional to 270,604.02, 405,897.66 and 128,551.56

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Solution

The fourth proportional to 270,604.02, 405,897.66 and 128,551.56 is: 192,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,604.02 : 405,897.66 = 128,551.56 : x
  2. Step 2: Convert to fraction form
    270,604.02/405,897.66 = 128,551.56/x
  3. Step 3: Cross multiply
    270,604.02x = 405,897.66 × 128,551.56
  4. Step 4: Simplify right side
    270,604.02x = 52,178,775,363.86
  5. Step 5: Solve for x
    x = 52,178,775,363.86/270,604.02
  6. Step 6: Final answer
    x = 192,823.36

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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.