Home / 461,012.18-691,368.61-153,181.49

Finding the Fourth Proportional to 461,012.18, 691,368.61 and 153,181.49

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Solution

The fourth proportional to 461,012.18, 691,368.61 and 153,181.49 is: 229,722.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,012.18 : 691,368.61 = 153,181.49 : x
  2. Step 2: Convert to fraction form
    461,012.18/691,368.61 = 153,181.49/x
  3. Step 3: Cross multiply
    461,012.18x = 691,368.61 × 153,181.49
  4. Step 4: Simplify right side
    461,012.18x = 105,904,873,819.03
  5. Step 5: Solve for x
    x = 105,904,873,819.03/461,012.18
  6. Step 6: Final answer
    x = 229,722.51

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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.