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Finding the Fourth Proportional to 340,738.74, 469,900.52 and 269,289.45

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Solution

The fourth proportional to 340,738.74, 469,900.52 and 269,289.45 is: 371,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,738.74 : 469,900.52 = 269,289.45 : x
  2. Step 2: Convert to fraction form
    340,738.74/469,900.52 = 269,289.45/x
  3. Step 3: Cross multiply
    340,738.74x = 469,900.52 × 269,289.45
  4. Step 4: Simplify right side
    340,738.74x = 126,539,252,585.51
  5. Step 5: Solve for x
    x = 126,539,252,585.51/340,738.74
  6. Step 6: Final answer
    x = 371,367.38

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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.