Home / 259,769.47-357,105.75-223,336.70

Finding the Fourth Proportional to 259,769.47, 357,105.75 and 223,336.70

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Solution

The fourth proportional to 259,769.47, 357,105.75 and 223,336.70 is: 307,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,769.47 : 357,105.75 = 223,336.70 : x
  2. Step 2: Convert to fraction form
    259,769.47/357,105.75 = 223,336.70/x
  3. Step 3: Cross multiply
    259,769.47x = 357,105.75 × 223,336.70
  4. Step 4: Simplify right side
    259,769.47x = 79,754,817,828.87
  5. Step 5: Solve for x
    x = 79,754,817,828.87/259,769.47
  6. Step 6: Final answer
    x = 307,021.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.