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Finding the Fourth Proportional to 258,514.88, 356,750.53 and 145,338.44

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Solution

The fourth proportional to 258,514.88, 356,750.53 and 145,338.44 is: 200,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,514.88 : 356,750.53 = 145,338.44 : x
  2. Step 2: Convert to fraction form
    258,514.88/356,750.53 = 145,338.44/x
  3. Step 3: Cross multiply
    258,514.88x = 356,750.53 × 145,338.44
  4. Step 4: Simplify right side
    258,514.88x = 51,849,563,352.27
  5. Step 5: Solve for x
    x = 51,849,563,352.27/258,514.88
  6. Step 6: Final answer
    x = 200,567.04

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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.