Home / 340,911.32-470,353.37-197,642.78

Finding the Fourth Proportional to 340,911.32, 470,353.37 and 197,642.78

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Solution

The fourth proportional to 340,911.32, 470,353.37 and 197,642.78 is: 272,686.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,911.32 : 470,353.37 = 197,642.78 : x
  2. Step 2: Convert to fraction form
    340,911.32/470,353.37 = 197,642.78/x
  3. Step 3: Cross multiply
    340,911.32x = 470,353.37 × 197,642.78
  4. Step 4: Simplify right side
    340,911.32x = 92,961,944,289.19
  5. Step 5: Solve for x
    x = 92,961,944,289.19/340,911.32
  6. Step 6: Final answer
    x = 272,686.59

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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.