Home / 284,928.40-393,077.64-171,686.80

Finding the Fourth Proportional to 284,928.40, 393,077.64 and 171,686.80

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Solution

The fourth proportional to 284,928.40, 393,077.64 and 171,686.80 is: 236,853.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,928.40 : 393,077.64 = 171,686.80 : x
  2. Step 2: Convert to fraction form
    284,928.40/393,077.64 = 171,686.80/x
  3. Step 3: Cross multiply
    284,928.40x = 393,077.64 × 171,686.80
  4. Step 4: Simplify right side
    284,928.40x = 67,486,242,163.15
  5. Step 5: Solve for x
    x = 67,486,242,163.15/284,928.40
  6. Step 6: Final answer
    x = 236,853.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.