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Finding the Fourth Proportional to 401,068.76, 553,474.90 and 222,220.76

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Solution

The fourth proportional to 401,068.76, 553,474.90 and 222,220.76 is: 306,664.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,068.76 : 553,474.90 = 222,220.76 : x
  2. Step 2: Convert to fraction form
    401,068.76/553,474.90 = 222,220.76/x
  3. Step 3: Cross multiply
    401,068.76x = 553,474.90 × 222,220.76
  4. Step 4: Simplify right side
    401,068.76x = 122,993,612,918.92
  5. Step 5: Solve for x
    x = 122,993,612,918.92/401,068.76
  6. Step 6: Final answer
    x = 306,664.66

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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.