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Finding the Fourth Proportional to 245,257.20, 367,885.80 and 170,218.80

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Solution

The fourth proportional to 245,257.20, 367,885.80 and 170,218.80 is: 255,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,257.20 : 367,885.80 = 170,218.80 : x
  2. Step 2: Convert to fraction form
    245,257.20/367,885.80 = 170,218.80/x
  3. Step 3: Cross multiply
    245,257.20x = 367,885.80 × 170,218.80
  4. Step 4: Simplify right side
    245,257.20x = 62,621,079,413.04
  5. Step 5: Solve for x
    x = 62,621,079,413.04/245,257.20
  6. Step 6: Final answer
    x = 255,328.20

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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.