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Finding the Fourth Proportional to 210,297.57, 315,399.20 and 60,504.45

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Solution

The fourth proportional to 210,297.57, 315,399.20 and 60,504.45 is: 90,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,297.57 : 315,399.20 = 60,504.45 : x
  2. Step 2: Convert to fraction form
    210,297.57/315,399.20 = 60,504.45/x
  3. Step 3: Cross multiply
    210,297.57x = 315,399.20 × 60,504.45
  4. Step 4: Simplify right side
    210,297.57x = 19,083,054,823.92
  5. Step 5: Solve for x
    x = 19,083,054,823.92/210,297.57
  6. Step 6: Final answer
    x = 90,743.11

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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.