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Finding the Fourth Proportional to 358,219.63, 494,413.71 and 205,360.45

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Solution

The fourth proportional to 358,219.63, 494,413.71 and 205,360.45 is: 283,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,219.63 : 494,413.71 = 205,360.45 : x
  2. Step 2: Convert to fraction form
    358,219.63/494,413.71 = 205,360.45/x
  3. Step 3: Cross multiply
    358,219.63x = 494,413.71 × 205,360.45
  4. Step 4: Simplify right side
    358,219.63x = 101,533,019,965.63
  5. Step 5: Solve for x
    x = 101,533,019,965.63/358,219.63
  6. Step 6: Final answer
    x = 283,437.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.