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Finding the Fourth Proportional to 340,697.21, 470,162.15 and 197,540.29

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Solution

The fourth proportional to 340,697.21, 470,162.15 and 197,540.29 is: 272,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,697.21 : 470,162.15 = 197,540.29 : x
  2. Step 2: Convert to fraction form
    340,697.21/470,162.15 = 197,540.29/x
  3. Step 3: Cross multiply
    340,697.21x = 470,162.15 × 197,540.29
  4. Step 4: Simplify right side
    340,697.21x = 92,875,966,265.30
  5. Step 5: Solve for x
    x = 92,875,966,265.30/340,697.21
  6. Step 6: Final answer
    x = 272,605.60

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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.