Home / 175,538.40-263,307.60-172,039.20

Finding the Fourth Proportional to 175,538.40, 263,307.60 and 172,039.20

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Solution

The fourth proportional to 175,538.40, 263,307.60 and 172,039.20 is: 258,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,538.40 : 263,307.60 = 172,039.20 : x
  2. Step 2: Convert to fraction form
    175,538.40/263,307.60 = 172,039.20/x
  3. Step 3: Cross multiply
    175,538.40x = 263,307.60 × 172,039.20
  4. Step 4: Simplify right side
    175,538.40x = 45,299,228,857.92
  5. Step 5: Solve for x
    x = 45,299,228,857.92/175,538.40
  6. Step 6: Final answer
    x = 258,058.80

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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.