Home / 257,091.12-354,817.44-155,175.12

Finding the Fourth Proportional to 257,091.12, 354,817.44 and 155,175.12

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Solution

The fourth proportional to 257,091.12, 354,817.44 and 155,175.12 is: 214,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,091.12 : 354,817.44 = 155,175.12 : x
  2. Step 2: Convert to fraction form
    257,091.12/354,817.44 = 155,175.12/x
  3. Step 3: Cross multiply
    257,091.12x = 354,817.44 × 155,175.12
  4. Step 4: Simplify right side
    257,091.12x = 55,058,838,830.09
  5. Step 5: Solve for x
    x = 55,058,838,830.09/257,091.12
  6. Step 6: Final answer
    x = 214,160.80

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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.