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Finding the Fourth Proportional to 197,132.40, 295,698.60 and 72,457.20

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Solution

The fourth proportional to 197,132.40, 295,698.60 and 72,457.20 is: 108,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,132.40 : 295,698.60 = 72,457.20 : x
  2. Step 2: Convert to fraction form
    197,132.40/295,698.60 = 72,457.20/x
  3. Step 3: Cross multiply
    197,132.40x = 295,698.60 × 72,457.20
  4. Step 4: Simplify right side
    197,132.40x = 21,425,492,599.92
  5. Step 5: Solve for x
    x = 21,425,492,599.92/197,132.40
  6. Step 6: Final answer
    x = 108,685.80

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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.