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Finding the Fourth Proportional to 216,152.40, 324,420.60 and 127,294.80

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Solution

The fourth proportional to 216,152.40, 324,420.60 and 127,294.80 is: 191,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,152.40 : 324,420.60 = 127,294.80 : x
  2. Step 2: Convert to fraction form
    216,152.40/324,420.60 = 127,294.80/x
  3. Step 3: Cross multiply
    216,152.40x = 324,420.60 × 127,294.80
  4. Step 4: Simplify right side
    216,152.40x = 41,297,055,392.88
  5. Step 5: Solve for x
    x = 41,297,055,392.88/216,152.40
  6. Step 6: Final answer
    x = 191,055.27

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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.