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Finding the Fourth Proportional to 340,910.82, 470,352.68 and 197,642.28

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Solution

The fourth proportional to 340,910.82, 470,352.68 and 197,642.28 is: 272,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,910.82 : 470,352.68 = 197,642.28 : x
  2. Step 2: Convert to fraction form
    340,910.82/470,352.68 = 197,642.28/x
  3. Step 3: Cross multiply
    340,910.82x = 470,352.68 × 197,642.28
  4. Step 4: Simplify right side
    340,910.82x = 92,961,572,739.34
  5. Step 5: Solve for x
    x = 92,961,572,739.34/340,910.82
  6. Step 6: Final answer
    x = 272,685.89

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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.