Home / 340,359.45-469,688.27-213,105.21

Finding the Fourth Proportional to 340,359.45, 469,688.27 and 213,105.21

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Solution

The fourth proportional to 340,359.45, 469,688.27 and 213,105.21 is: 294,080.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,359.45 : 469,688.27 = 213,105.21 : x
  2. Step 2: Convert to fraction form
    340,359.45/469,688.27 = 213,105.21/x
  3. Step 3: Cross multiply
    340,359.45x = 469,688.27 × 213,105.21
  4. Step 4: Simplify right side
    340,359.45x = 100,093,016,347.36
  5. Step 5: Solve for x
    x = 100,093,016,347.36/340,359.45
  6. Step 6: Final answer
    x = 294,080.32

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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.