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Finding the Fourth Proportional to 340,591.32, 470,013.42 and 197,348.28

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Solution

The fourth proportional to 340,591.32, 470,013.42 and 197,348.28 is: 272,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,591.32 : 470,013.42 = 197,348.28 : x
  2. Step 2: Convert to fraction form
    340,591.32/470,013.42 = 197,348.28/x
  3. Step 3: Cross multiply
    340,591.32x = 470,013.42 × 197,348.28
  4. Step 4: Simplify right side
    340,591.32x = 92,756,340,013.92
  5. Step 5: Solve for x
    x = 92,756,340,013.92/340,591.32
  6. Step 6: Final answer
    x = 272,339.12

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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.