Home / 286,183.00-429,290.30-86,498.36

Finding the Fourth Proportional to 286,183.00, 429,290.30 and 86,498.36

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Solution

The fourth proportional to 286,183.00, 429,290.30 and 86,498.36 is: 129,752.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,183.00 : 429,290.30 = 86,498.36 : x
  2. Step 2: Convert to fraction form
    286,183.00/429,290.30 = 86,498.36/x
  3. Step 3: Cross multiply
    286,183.00x = 429,290.30 × 86,498.36
  4. Step 4: Simplify right side
    286,183.00x = 37,132,904,334.96
  5. Step 5: Solve for x
    x = 37,132,904,334.96/286,183.00
  6. Step 6: Final answer
    x = 129,752.31

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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.