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Finding the Fourth Proportional to 401,147.83, 553,558.89 and 219,846.89

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Solution

The fourth proportional to 401,147.83, 553,558.89 and 219,846.89 is: 303,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,147.83 : 553,558.89 = 219,846.89 : x
  2. Step 2: Convert to fraction form
    401,147.83/553,558.89 = 219,846.89/x
  3. Step 3: Cross multiply
    401,147.83x = 553,558.89 × 219,846.89
  4. Step 4: Simplify right side
    401,147.83x = 121,698,201,782.25
  5. Step 5: Solve for x
    x = 121,698,201,782.25/401,147.83
  6. Step 6: Final answer
    x = 303,374.95

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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.