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Finding the Fourth Proportional to 303,413.80, 425,401.40 and 303,413.80

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Solution

The fourth proportional to 303,413.80, 425,401.40 and 303,413.80 is: 425,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,413.80 : 425,401.40 = 303,413.80 : x
  2. Step 2: Convert to fraction form
    303,413.80/425,401.40 = 303,413.80/x
  3. Step 3: Cross multiply
    303,413.80x = 425,401.40 × 303,413.80
  4. Step 4: Simplify right side
    303,413.80x = 129,072,655,299.32
  5. Step 5: Solve for x
    x = 129,072,655,299.32/303,413.80
  6. Step 6: Final answer
    x = 425,401.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.