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Finding the Fourth Proportional to 355,590.77, 533,297.36 and 139,493.42

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Solution

The fourth proportional to 355,590.77, 533,297.36 and 139,493.42 is: 209,205.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,590.77 : 533,297.36 = 139,493.42 : x
  2. Step 2: Convert to fraction form
    355,590.77/533,297.36 = 139,493.42/x
  3. Step 3: Cross multiply
    355,590.77x = 533,297.36 × 139,493.42
  4. Step 4: Simplify right side
    355,590.77x = 74,391,472,623.37
  5. Step 5: Solve for x
    x = 74,391,472,623.37/355,590.77
  6. Step 6: Final answer
    x = 209,205.30

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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.