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Finding the Fourth Proportional to 401,089.94, 601,230.05 and 251,435.34

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Solution

The fourth proportional to 401,089.94, 601,230.05 and 251,435.34 is: 376,899.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,089.94 : 601,230.05 = 251,435.34 : x
  2. Step 2: Convert to fraction form
    401,089.94/601,230.05 = 251,435.34/x
  3. Step 3: Cross multiply
    401,089.94x = 601,230.05 × 251,435.34
  4. Step 4: Simplify right side
    401,089.94x = 151,170,480,782.79
  5. Step 5: Solve for x
    x = 151,170,480,782.79/401,089.94
  6. Step 6: Final answer
    x = 376,899.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.