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Finding the Fourth Proportional to 291,225.01, 401,903.45 and 163,908.85

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Solution

The fourth proportional to 291,225.01, 401,903.45 and 163,908.85 is: 226,201.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,225.01 : 401,903.45 = 163,908.85 : x
  2. Step 2: Convert to fraction form
    291,225.01/401,903.45 = 163,908.85/x
  3. Step 3: Cross multiply
    291,225.01x = 401,903.45 × 163,908.85
  4. Step 4: Simplify right side
    291,225.01x = 65,875,532,300.53
  5. Step 5: Solve for x
    x = 65,875,532,300.53/291,225.01
  6. Step 6: Final answer
    x = 226,201.49

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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.