Home / 405,031.37-558,895.39-223,732.43

Finding the Fourth Proportional to 405,031.37, 558,895.39 and 223,732.43

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Solution

The fourth proportional to 405,031.37, 558,895.39 and 223,732.43 is: 308,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,031.37 : 558,895.39 = 223,732.43 : x
  2. Step 2: Convert to fraction form
    405,031.37/558,895.39 = 223,732.43/x
  3. Step 3: Cross multiply
    405,031.37x = 558,895.39 × 223,732.43
  4. Step 4: Simplify right side
    405,031.37x = 125,043,020,366.69
  5. Step 5: Solve for x
    x = 125,043,020,366.69/405,031.37
  6. Step 6: Final answer
    x = 308,724.28

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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.