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Finding the Fourth Proportional to 401,102.01, 553,525.21 and 219,810.09

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Solution

The fourth proportional to 401,102.01, 553,525.21 and 219,810.09 is: 303,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,102.01 : 553,525.21 = 219,810.09 : x
  2. Step 2: Convert to fraction form
    401,102.01/553,525.21 = 219,810.09/x
  3. Step 3: Cross multiply
    401,102.01x = 553,525.21 × 219,810.09
  4. Step 4: Simplify right side
    401,102.01x = 121,670,426,227.37
  5. Step 5: Solve for x
    x = 121,670,426,227.37/401,102.01
  6. Step 6: Final answer
    x = 303,340.36

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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.