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Finding the Fourth Proportional to 401,476.85, 554,036.46 and 220,184

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Solution

The fourth proportional to 401,476.85, 554,036.46 and 220,184 is: 303,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,476.85 : 554,036.46 = 220,184 : x
  2. Step 2: Convert to fraction form
    401,476.85/554,036.46 = 220,184/x
  3. Step 3: Cross multiply
    401,476.85x = 554,036.46 × 220,184
  4. Step 4: Simplify right side
    401,476.85x = 121,989,963,908.64
  5. Step 5: Solve for x
    x = 121,989,963,908.64/401,476.85
  6. Step 6: Final answer
    x = 303,853.05

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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.