Home / 465,265.78-642,090-261,306.16

Finding the Fourth Proportional to 465,265.78, 642,090 and 261,306.16

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Solution

The fourth proportional to 465,265.78, 642,090 and 261,306.16 is: 360,615.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,265.78 : 642,090 = 261,306.16 : x
  2. Step 2: Convert to fraction form
    465,265.78/642,090 = 261,306.16/x
  3. Step 3: Cross multiply
    465,265.78x = 642,090 × 261,306.16
  4. Step 4: Simplify right side
    465,265.78x = 167,782,072,274.40
  5. Step 5: Solve for x
    x = 167,782,072,274.40/465,265.78
  6. Step 6: Final answer
    x = 360,615.54

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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.