Home / 221,392.04-304,782.06-211,223.84

Finding the Fourth Proportional to 221,392.04, 304,782.06 and 211,223.84

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Solution

The fourth proportional to 221,392.04, 304,782.06 and 211,223.84 is: 290,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,392.04 : 304,782.06 = 211,223.84 : x
  2. Step 2: Convert to fraction form
    221,392.04/304,782.06 = 211,223.84/x
  3. Step 3: Cross multiply
    221,392.04x = 304,782.06 × 211,223.84
  4. Step 4: Simplify right side
    221,392.04x = 64,377,237,076.31
  5. Step 5: Solve for x
    x = 64,377,237,076.31/221,392.04
  6. Step 6: Final answer
    x = 290,783.88

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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.