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Finding the Fourth Proportional to 366,413.70, 549,620.55 and 303,428.10

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Solution

The fourth proportional to 366,413.70, 549,620.55 and 303,428.10 is: 455,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,413.70 : 549,620.55 = 303,428.10 : x
  2. Step 2: Convert to fraction form
    366,413.70/549,620.55 = 303,428.10/x
  3. Step 3: Cross multiply
    366,413.70x = 549,620.55 × 303,428.10
  4. Step 4: Simplify right side
    366,413.70x = 166,770,319,207.46
  5. Step 5: Solve for x
    x = 166,770,319,207.46/366,413.70
  6. Step 6: Final answer
    x = 455,142.15

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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.