Home / 481,035.60-721,665.72-139,486.23

Finding the Fourth Proportional to 481,035.60, 721,665.72 and 139,486.23

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Solution

The fourth proportional to 481,035.60, 721,665.72 and 139,486.23 is: 209,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,035.60 : 721,665.72 = 139,486.23 : x
  2. Step 2: Convert to fraction form
    481,035.60/721,665.72 = 139,486.23/x
  3. Step 3: Cross multiply
    481,035.60x = 721,665.72 × 139,486.23
  4. Step 4: Simplify right side
    481,035.60x = 100,662,430,603.04
  5. Step 5: Solve for x
    x = 100,662,430,603.04/481,035.60
  6. Step 6: Final answer
    x = 209,261.91

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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.