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Finding the Fourth Proportional to 356,436.30, 534,006.45 and 282,045.90

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Solution

The fourth proportional to 356,436.30, 534,006.45 and 282,045.90 is: 422,556.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,436.30 : 534,006.45 = 282,045.90 : x
  2. Step 2: Convert to fraction form
    356,436.30/534,006.45 = 282,045.90/x
  3. Step 3: Cross multiply
    356,436.30x = 534,006.45 × 282,045.90
  4. Step 4: Simplify right side
    356,436.30x = 150,614,329,796.06
  5. Step 5: Solve for x
    x = 150,614,329,796.06/356,436.30
  6. Step 6: Final answer
    x = 422,556.09

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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.