Home / 405,015.93-558,919.71-223,740.36

Finding the Fourth Proportional to 405,015.93, 558,919.71 and 223,740.36

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Solution

The fourth proportional to 405,015.93, 558,919.71 and 223,740.36 is: 308,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,015.93 : 558,919.71 = 223,740.36 : x
  2. Step 2: Convert to fraction form
    405,015.93/558,919.71 = 223,740.36/x
  3. Step 3: Cross multiply
    405,015.93x = 558,919.71 × 223,740.36
  4. Step 4: Simplify right side
    405,015.93x = 125,052,897,126.50
  5. Step 5: Solve for x
    x = 125,052,897,126.50/405,015.93
  6. Step 6: Final answer
    x = 308,760.44

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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.