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Finding the Fourth Proportional to 303,413.45, 455,005.35 and 100,973.79

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Solution

The fourth proportional to 303,413.45, 455,005.35 and 100,973.79 is: 151,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,413.45 : 455,005.35 = 100,973.79 : x
  2. Step 2: Convert to fraction form
    303,413.45/455,005.35 = 100,973.79/x
  3. Step 3: Cross multiply
    303,413.45x = 455,005.35 × 100,973.79
  4. Step 4: Simplify right side
    303,413.45x = 45,943,614,659.78
  5. Step 5: Solve for x
    x = 45,943,614,659.78/303,413.45
  6. Step 6: Final answer
    x = 151,422.47

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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.