Home / 380,814.03-525,762.18-245,083.68

Finding the Fourth Proportional to 380,814.03, 525,762.18 and 245,083.68

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Solution

The fourth proportional to 380,814.03, 525,762.18 and 245,083.68 is: 338,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,814.03 : 525,762.18 = 245,083.68 : x
  2. Step 2: Convert to fraction form
    380,814.03/525,762.18 = 245,083.68/x
  3. Step 3: Cross multiply
    380,814.03x = 525,762.18 × 245,083.68
  4. Step 4: Simplify right side
    380,814.03x = 128,855,729,879.22
  5. Step 5: Solve for x
    x = 128,855,729,879.22/380,814.03
  6. Step 6: Final answer
    x = 338,369.18

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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.