Home / 465,640.03-642,758.78-272,110.58

Finding the Fourth Proportional to 465,640.03, 642,758.78 and 272,110.58

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Solution

The fourth proportional to 465,640.03, 642,758.78 and 272,110.58 is: 375,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,640.03 : 642,758.78 = 272,110.58 : x
  2. Step 2: Convert to fraction form
    465,640.03/642,758.78 = 272,110.58/x
  3. Step 3: Cross multiply
    465,640.03x = 642,758.78 × 272,110.58
  4. Step 4: Simplify right side
    465,640.03x = 174,901,464,425.89
  5. Step 5: Solve for x
    x = 174,901,464,425.89/465,640.03
  6. Step 6: Final answer
    x = 375,615.18

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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.