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Finding the Fourth Proportional to 425,230.44, 637,868.94 and 172,473.40

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Solution

The fourth proportional to 425,230.44, 637,868.94 and 172,473.40 is: 258,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,230.44 : 637,868.94 = 172,473.40 : x
  2. Step 2: Convert to fraction form
    425,230.44/637,868.94 = 172,473.40/x
  3. Step 3: Cross multiply
    425,230.44x = 637,868.94 × 172,473.40
  4. Step 4: Simplify right side
    425,230.44x = 110,015,424,836.20
  5. Step 5: Solve for x
    x = 110,015,424,836.20/425,230.44
  6. Step 6: Final answer
    x = 258,719.54

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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.