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Finding the Fourth Proportional to 340,607.28, 469,966.16 and 197,358.64

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Solution

The fourth proportional to 340,607.28, 469,966.16 and 197,358.64 is: 272,313.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,607.28 : 469,966.16 = 197,358.64 : x
  2. Step 2: Convert to fraction form
    340,607.28/469,966.16 = 197,358.64/x
  3. Step 3: Cross multiply
    340,607.28x = 469,966.16 × 197,358.64
  4. Step 4: Simplify right side
    340,607.28x = 92,751,882,183.62
  5. Step 5: Solve for x
    x = 92,751,882,183.62/340,607.28
  6. Step 6: Final answer
    x = 272,313.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.