Home / 355,986.29-534,348.60-238,478.78

Finding the Fourth Proportional to 355,986.29, 534,348.60 and 238,478.78

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Solution

The fourth proportional to 355,986.29, 534,348.60 and 238,478.78 is: 357,965.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,986.29 : 534,348.60 = 238,478.78 : x
  2. Step 2: Convert to fraction form
    355,986.29/534,348.60 = 238,478.78/x
  3. Step 3: Cross multiply
    355,986.29x = 534,348.60 × 238,478.78
  4. Step 4: Simplify right side
    355,986.29x = 127,430,802,664.28
  5. Step 5: Solve for x
    x = 127,430,802,664.28/355,986.29
  6. Step 6: Final answer
    x = 357,965.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.