Home / 285,245.48-427,916.82-143,158.52

Finding the Fourth Proportional to 285,245.48, 427,916.82 and 143,158.52

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Solution

The fourth proportional to 285,245.48, 427,916.82 and 143,158.52 is: 214,762.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,245.48 : 427,916.82 = 143,158.52 : x
  2. Step 2: Convert to fraction form
    285,245.48/427,916.82 = 143,158.52/x
  3. Step 3: Cross multiply
    285,245.48x = 427,916.82 × 143,158.52
  4. Step 4: Simplify right side
    285,245.48x = 61,259,938,634.31
  5. Step 5: Solve for x
    x = 61,259,938,634.31/285,245.48
  6. Step 6: Final answer
    x = 214,762.17

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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.