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Finding the Fourth Proportional to 258,334.40, 387,501.60 and 169,860.80

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Solution

The fourth proportional to 258,334.40, 387,501.60 and 169,860.80 is: 254,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,334.40 : 387,501.60 = 169,860.80 : x
  2. Step 2: Convert to fraction form
    258,334.40/387,501.60 = 169,860.80/x
  3. Step 3: Cross multiply
    258,334.40x = 387,501.60 × 169,860.80
  4. Step 4: Simplify right side
    258,334.40x = 65,821,331,777.28
  5. Step 5: Solve for x
    x = 65,821,331,777.28/258,334.40
  6. Step 6: Final answer
    x = 254,791.20

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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.