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Finding the Fourth Proportional to 401,364.40, 553,907.72 and 222,516.40

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Solution

The fourth proportional to 401,364.40, 553,907.72 and 222,516.40 is: 307,086.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,364.40 : 553,907.72 = 222,516.40 : x
  2. Step 2: Convert to fraction form
    401,364.40/553,907.72 = 222,516.40/x
  3. Step 3: Cross multiply
    401,364.40x = 553,907.72 × 222,516.40
  4. Step 4: Simplify right side
    401,364.40x = 123,253,551,786.61
  5. Step 5: Solve for x
    x = 123,253,551,786.61/401,364.40
  6. Step 6: Final answer
    x = 307,086.41

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1.5x scale

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.