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Finding the Fourth Proportional to 263,352, 395,028 and 66,360

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Solution

The fourth proportional to 263,352, 395,028 and 66,360 is: 99,540

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,352 : 395,028 = 66,360 : x
  2. Step 2: Convert to fraction form
    263,352/395,028 = 66,360/x
  3. Step 3: Cross multiply
    263,352x = 395,028 × 66,360
  4. Step 4: Simplify right side
    263,352x = 26,214,058,080
  5. Step 5: Solve for x
    x = 26,214,058,080/263,352
  6. Step 6: Final answer
    x = 99,540

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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.