Home / 443,430.34-611,933.73-239,481.31

Finding the Fourth Proportional to 443,430.34, 611,933.73 and 239,481.31

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Solution

The fourth proportional to 443,430.34, 611,933.73 and 239,481.31 is: 330,484.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,430.34 : 611,933.73 = 239,481.31 : x
  2. Step 2: Convert to fraction form
    443,430.34/611,933.73 = 239,481.31/x
  3. Step 3: Cross multiply
    443,430.34x = 611,933.73 × 239,481.31
  4. Step 4: Simplify right side
    443,430.34x = 146,546,690,013.07
  5. Step 5: Solve for x
    x = 146,546,690,013.07/443,430.34
  6. Step 6: Final answer
    x = 330,484.13

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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.