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Finding the Fourth Proportional to 378,591.93, 522,513.44 and 242,779.23

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Solution

The fourth proportional to 378,591.93, 522,513.44 and 242,779.23 is: 335,071.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,591.93 : 522,513.44 = 242,779.23 : x
  2. Step 2: Convert to fraction form
    378,591.93/522,513.44 = 242,779.23/x
  3. Step 3: Cross multiply
    378,591.93x = 522,513.44 × 242,779.23
  4. Step 4: Simplify right side
    378,591.93x = 126,855,409,413.96
  5. Step 5: Solve for x
    x = 126,855,409,413.96/378,591.93
  6. Step 6: Final answer
    x = 335,071.62

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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.