Home / 278,542.81-384,192.34-171,173.26

Finding the Fourth Proportional to 278,542.81, 384,192.34 and 171,173.26

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Solution

The fourth proportional to 278,542.81, 384,192.34 and 171,173.26 is: 236,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,542.81 : 384,192.34 = 171,173.26 : x
  2. Step 2: Convert to fraction form
    278,542.81/384,192.34 = 171,173.26/x
  3. Step 3: Cross multiply
    278,542.81x = 384,192.34 × 171,173.26
  4. Step 4: Simplify right side
    278,542.81x = 65,763,455,304.83
  5. Step 5: Solve for x
    x = 65,763,455,304.83/278,542.81
  6. Step 6: Final answer
    x = 236,098.20

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1.5x scale

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.