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Finding the Fourth Proportional to 320,030.87, 480,040.37 and 95,543.51

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Solution

The fourth proportional to 320,030.87, 480,040.37 and 95,543.51 is: 143,313.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,030.87 : 480,040.37 = 95,543.51 : x
  2. Step 2: Convert to fraction form
    320,030.87/480,040.37 = 95,543.51/x
  3. Step 3: Cross multiply
    320,030.87x = 480,040.37 × 95,543.51
  4. Step 4: Simplify right side
    320,030.87x = 45,864,741,413.78
  5. Step 5: Solve for x
    x = 45,864,741,413.78/320,030.87
  6. Step 6: Final answer
    x = 143,313.49

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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.