Home / 403,816.47-605,899.67-216,609.27

Finding the Fourth Proportional to 403,816.47, 605,899.67 and 216,609.27

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Solution

The fourth proportional to 403,816.47, 605,899.67 and 216,609.27 is: 325,007.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,816.47 : 605,899.67 = 216,609.27 : x
  2. Step 2: Convert to fraction form
    403,816.47/605,899.67 = 216,609.27/x
  3. Step 3: Cross multiply
    403,816.47x = 605,899.67 × 216,609.27
  4. Step 4: Simplify right side
    403,816.47x = 131,243,484,128.90
  5. Step 5: Solve for x
    x = 131,243,484,128.90/403,816.47
  6. Step 6: Final answer
    x = 325,007.75

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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.