Home / 405,105.20-559,051.02-223,821.32

Finding the Fourth Proportional to 405,105.20, 559,051.02 and 223,821.32

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Solution

The fourth proportional to 405,105.20, 559,051.02 and 223,821.32 is: 308,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,105.20 : 559,051.02 = 223,821.32 : x
  2. Step 2: Convert to fraction form
    405,105.20/559,051.02 = 223,821.32/x
  3. Step 3: Cross multiply
    405,105.20x = 559,051.02 × 223,821.32
  4. Step 4: Simplify right side
    405,105.20x = 125,127,537,243.75
  5. Step 5: Solve for x
    x = 125,127,537,243.75/405,105.20
  6. Step 6: Final answer
    x = 308,876.65

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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.