Home / 401,076.10-553,476.13-219,784.06

Finding the Fourth Proportional to 401,076.10, 553,476.13 and 219,784.06

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Solution

The fourth proportional to 401,076.10, 553,476.13 and 219,784.06 is: 303,297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,076.10 : 553,476.13 = 219,784.06 : x
  2. Step 2: Convert to fraction form
    401,076.10/553,476.13 = 219,784.06/x
  3. Step 3: Cross multiply
    401,076.10x = 553,476.13 × 219,784.06
  4. Step 4: Simplify right side
    401,076.10x = 121,645,230,964.49
  5. Step 5: Solve for x
    x = 121,645,230,964.49/401,076.10
  6. Step 6: Final answer
    x = 303,297.13

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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.