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Finding the Fourth Proportional to 338,512.60, 507,623.10 and 169,967.80

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Solution

The fourth proportional to 338,512.60, 507,623.10 and 169,967.80 is: 254,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,512.60 : 507,623.10 = 169,967.80 : x
  2. Step 2: Convert to fraction form
    338,512.60/507,623.10 = 169,967.80/x
  3. Step 3: Cross multiply
    338,512.60x = 507,623.10 × 169,967.80
  4. Step 4: Simplify right side
    338,512.60x = 86,279,581,536.18
  5. Step 5: Solve for x
    x = 86,279,581,536.18/338,512.60
  6. Step 6: Final answer
    x = 254,878.49

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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.