Home / 309,448.86-463,580.36-209,436.54

Finding the Fourth Proportional to 309,448.86, 463,580.36 and 209,436.54

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Solution

The fourth proportional to 309,448.86, 463,580.36 and 209,436.54 is: 313,753.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,448.86 : 463,580.36 = 209,436.54 : x
  2. Step 2: Convert to fraction form
    309,448.86/463,580.36 = 209,436.54/x
  3. Step 3: Cross multiply
    309,448.86x = 463,580.36 × 209,436.54
  4. Step 4: Simplify right side
    309,448.86x = 97,090,665,563.17
  5. Step 5: Solve for x
    x = 97,090,665,563.17/309,448.86
  6. Step 6: Final answer
    x = 313,753.51

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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.