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Finding the Fourth Proportional to 285,054.23, 427,647.84 and 82,654.56

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Solution

The fourth proportional to 285,054.23, 427,647.84 and 82,654.56 is: 124,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,054.23 : 427,647.84 = 82,654.56 : x
  2. Step 2: Convert to fraction form
    285,054.23/427,647.84 = 82,654.56/x
  3. Step 3: Cross multiply
    285,054.23x = 427,647.84 × 82,654.56
  4. Step 4: Simplify right side
    285,054.23x = 35,347,044,050.15
  5. Step 5: Solve for x
    x = 35,347,044,050.15/285,054.23
  6. Step 6: Final answer
    x = 124,001.12

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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.