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Finding the Fourth Proportional to 300,413.35, 450,562.65 and 90,051.29

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Solution

The fourth proportional to 300,413.35, 450,562.65 and 90,051.29 is: 135,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,413.35 : 450,562.65 = 90,051.29 : x
  2. Step 2: Convert to fraction form
    300,413.35/450,562.65 = 90,051.29/x
  3. Step 3: Cross multiply
    300,413.35x = 450,562.65 × 90,051.29
  4. Step 4: Simplify right side
    300,413.35x = 40,573,747,858.32
  5. Step 5: Solve for x
    x = 40,573,747,858.32/300,413.35
  6. Step 6: Final answer
    x = 135,059.74

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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.