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Finding the Fourth Proportional to 190,080, 285,120 and 58,752

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Solution

The fourth proportional to 190,080, 285,120 and 58,752 is: 88,128

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,080 : 285,120 = 58,752 : x
  2. Step 2: Convert to fraction form
    190,080/285,120 = 58,752/x
  3. Step 3: Cross multiply
    190,080x = 285,120 × 58,752
  4. Step 4: Simplify right side
    190,080x = 16,751,370,240
  5. Step 5: Solve for x
    x = 16,751,370,240/190,080
  6. Step 6: Final answer
    x = 88,128

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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.