Home / 356,388.88-534,518.74-143,148.18

Finding the Fourth Proportional to 356,388.88, 534,518.74 and 143,148.18

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Solution

The fourth proportional to 356,388.88, 534,518.74 and 143,148.18 is: 214,696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,388.88 : 534,518.74 = 143,148.18 : x
  2. Step 2: Convert to fraction form
    356,388.88/534,518.74 = 143,148.18/x
  3. Step 3: Cross multiply
    356,388.88x = 534,518.74 × 143,148.18
  4. Step 4: Simplify right side
    356,388.88x = 76,515,384,449.02
  5. Step 5: Solve for x
    x = 76,515,384,449.02/356,388.88
  6. Step 6: Final answer
    x = 214,696.33

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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.