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Finding the Fourth Proportional to 270,009.60, 404,755.20 and 210,004.80

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Solution

The fourth proportional to 270,009.60, 404,755.20 and 210,004.80 is: 314,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,009.60 : 404,755.20 = 210,004.80 : x
  2. Step 2: Convert to fraction form
    270,009.60/404,755.20 = 210,004.80/x
  3. Step 3: Cross multiply
    270,009.60x = 404,755.20 × 210,004.80
  4. Step 4: Simplify right side
    270,009.60x = 85,000,534,824.96
  5. Step 5: Solve for x
    x = 85,000,534,824.96/270,009.60
  6. Step 6: Final answer
    x = 314,805.60

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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.