Home / 239,730.32-330,970.92-213,161.36

Finding the Fourth Proportional to 239,730.32, 330,970.92 and 213,161.36

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Solution

The fourth proportional to 239,730.32, 330,970.92 and 213,161.36 is: 294,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,730.32 : 330,970.92 = 213,161.36 : x
  2. Step 2: Convert to fraction form
    239,730.32/330,970.92 = 213,161.36/x
  3. Step 3: Cross multiply
    239,730.32x = 330,970.92 × 213,161.36
  4. Step 4: Simplify right side
    239,730.32x = 70,550,211,427.65
  5. Step 5: Solve for x
    x = 70,550,211,427.65/239,730.32
  6. Step 6: Final answer
    x = 294,289.90

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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.