Home / 403,946.07-557,420.16-222,648

Finding the Fourth Proportional to 403,946.07, 557,420.16 and 222,648

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Solution

The fourth proportional to 403,946.07, 557,420.16 and 222,648 is: 307,240.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,946.07 : 557,420.16 = 222,648 : x
  2. Step 2: Convert to fraction form
    403,946.07/557,420.16 = 222,648/x
  3. Step 3: Cross multiply
    403,946.07x = 557,420.16 × 222,648
  4. Step 4: Simplify right side
    403,946.07x = 124,108,483,783.68
  5. Step 5: Solve for x
    x = 124,108,483,783.68/403,946.07
  6. Step 6: Final answer
    x = 307,240.23

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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.