Home / 405,106.70-559,053.09-223,822.82

Finding the Fourth Proportional to 405,106.70, 559,053.09 and 223,822.82

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Solution

The fourth proportional to 405,106.70, 559,053.09 and 223,822.82 is: 308,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,106.70 : 559,053.09 = 223,822.82 : x
  2. Step 2: Convert to fraction form
    405,106.70/559,053.09 = 223,822.82/x
  3. Step 3: Cross multiply
    405,106.70x = 559,053.09 × 223,822.82
  4. Step 4: Simplify right side
    405,106.70x = 125,128,839,133.51
  5. Step 5: Solve for x
    x = 125,128,839,133.51/405,106.70
  6. Step 6: Final answer
    x = 308,878.72

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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.