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Finding the Fourth Proportional to 270,032.60, 405,000.30 and 170,013.80

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Solution

The fourth proportional to 270,032.60, 405,000.30 and 170,013.80 is: 254,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,032.60 : 405,000.30 = 170,013.80 : x
  2. Step 2: Convert to fraction form
    270,032.60/405,000.30 = 170,013.80/x
  3. Step 3: Cross multiply
    270,032.60x = 405,000.30 × 170,013.80
  4. Step 4: Simplify right side
    270,032.60x = 68,855,640,004.14
  5. Step 5: Solve for x
    x = 68,855,640,004.14/270,032.60
  6. Step 6: Final answer
    x = 254,990.10

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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.