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Finding the Fourth Proportional to 140,220.40, 210,330.60 and 126,223.60

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Solution

The fourth proportional to 140,220.40, 210,330.60 and 126,223.60 is: 189,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,220.40 : 210,330.60 = 126,223.60 : x
  2. Step 2: Convert to fraction form
    140,220.40/210,330.60 = 126,223.60/x
  3. Step 3: Cross multiply
    140,220.40x = 210,330.60 × 126,223.60
  4. Step 4: Simplify right side
    140,220.40x = 26,548,685,522.16
  5. Step 5: Solve for x
    x = 26,548,685,522.16/140,220.40
  6. Step 6: Final answer
    x = 189,335.40

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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.