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Finding the Fourth Proportional to 190,602, 262,858.56 and 118,988.64

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Solution

The fourth proportional to 190,602, 262,858.56 and 118,988.64 is: 164,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,602 : 262,858.56 = 118,988.64 : x
  2. Step 2: Convert to fraction form
    190,602/262,858.56 = 118,988.64/x
  3. Step 3: Cross multiply
    190,602x = 262,858.56 × 118,988.64
  4. Step 4: Simplify right side
    190,602x = 31,277,182,566.76
  5. Step 5: Solve for x
    x = 31,277,182,566.76/190,602
  6. Step 6: Final answer
    x = 164,096.82

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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.