Home / 405,022.16-558,919.75-223,730.20

Finding the Fourth Proportional to 405,022.16, 558,919.75 and 223,730.20

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Solution

The fourth proportional to 405,022.16, 558,919.75 and 223,730.20 is: 308,741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,022.16 : 558,919.75 = 223,730.20 : x
  2. Step 2: Convert to fraction form
    405,022.16/558,919.75 = 223,730.20/x
  3. Step 3: Cross multiply
    405,022.16x = 558,919.75 × 223,730.20
  4. Step 4: Simplify right side
    405,022.16x = 125,047,227,451.45
  5. Step 5: Solve for x
    x = 125,047,227,451.45/405,022.16
  6. Step 6: Final answer
    x = 308,741.69

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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.