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Finding the Fourth Proportional to 401,314.67, 553,819.64 and 220,026.16

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Solution

The fourth proportional to 401,314.67, 553,819.64 and 220,026.16 is: 303,639.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,314.67 : 553,819.64 = 220,026.16 : x
  2. Step 2: Convert to fraction form
    401,314.67/553,819.64 = 220,026.16/x
  3. Step 3: Cross multiply
    401,314.67x = 553,819.64 × 220,026.16
  4. Step 4: Simplify right side
    401,314.67x = 121,854,806,237.10
  5. Step 5: Solve for x
    x = 121,854,806,237.10/401,314.67
  6. Step 6: Final answer
    x = 303,639.06

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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.