Home / 405,080.02-558,982.32-223,790.50

Finding the Fourth Proportional to 405,080.02, 558,982.32 and 223,790.50

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Solution

The fourth proportional to 405,080.02, 558,982.32 and 223,790.50 is: 308,815.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,080.02 : 558,982.32 = 223,790.50 : x
  2. Step 2: Convert to fraction form
    405,080.02/558,982.32 = 223,790.50/x
  3. Step 3: Cross multiply
    405,080.02x = 558,982.32 × 223,790.50
  4. Step 4: Simplify right side
    405,080.02x = 125,094,932,883.96
  5. Step 5: Solve for x
    x = 125,094,932,883.96/405,080.02
  6. Step 6: Final answer
    x = 308,815.36

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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.