Home / 389,111.63-536,982.24-219,345.75

Finding the Fourth Proportional to 389,111.63, 536,982.24 and 219,345.75

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Solution

The fourth proportional to 389,111.63, 536,982.24 and 219,345.75 is: 302,701.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,111.63 : 536,982.24 = 219,345.75 : x
  2. Step 2: Convert to fraction form
    389,111.63/536,982.24 = 219,345.75/x
  3. Step 3: Cross multiply
    389,111.63x = 536,982.24 × 219,345.75
  4. Step 4: Simplify right side
    389,111.63x = 117,784,772,992.03
  5. Step 5: Solve for x
    x = 117,784,772,992.03/389,111.63
  6. Step 6: Final answer
    x = 302,701.76

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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.