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Finding the Fourth Proportional to 296,942.40, 445,413.60 and 261,950.40

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Solution

The fourth proportional to 296,942.40, 445,413.60 and 261,950.40 is: 392,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,942.40 : 445,413.60 = 261,950.40 : x
  2. Step 2: Convert to fraction form
    296,942.40/445,413.60 = 261,950.40/x
  3. Step 3: Cross multiply
    296,942.40x = 445,413.60 × 261,950.40
  4. Step 4: Simplify right side
    296,942.40x = 116,676,270,685.44
  5. Step 5: Solve for x
    x = 116,676,270,685.44/296,942.40
  6. Step 6: Final answer
    x = 392,925.60

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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.