Home / 405,112.95-559,061.73-223,829.05

Finding the Fourth Proportional to 405,112.95, 559,061.73 and 223,829.05

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Solution

The fourth proportional to 405,112.95, 559,061.73 and 223,829.05 is: 308,887.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,112.95 : 559,061.73 = 223,829.05 : x
  2. Step 2: Convert to fraction form
    405,112.95/559,061.73 = 223,829.05/x
  3. Step 3: Cross multiply
    405,112.95x = 559,061.73 × 223,829.05
  4. Step 4: Simplify right side
    405,112.95x = 125,134,255,917.26
  5. Step 5: Solve for x
    x = 125,134,255,917.26/405,112.95
  6. Step 6: Final answer
    x = 308,887.33

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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.