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Finding the Fourth Proportional to 243,575.10, 365,590.46 and 123,717.78

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Solution

The fourth proportional to 243,575.10, 365,590.46 and 123,717.78 is: 185,692.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,575.10 : 365,590.46 = 123,717.78 : x
  2. Step 2: Convert to fraction form
    243,575.10/365,590.46 = 123,717.78/x
  3. Step 3: Cross multiply
    243,575.10x = 365,590.46 × 123,717.78
  4. Step 4: Simplify right side
    243,575.10x = 45,230,040,409.67
  5. Step 5: Solve for x
    x = 45,230,040,409.67/243,575.10
  6. Step 6: Final answer
    x = 185,692.38

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1.5x scale

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.