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Finding the Fourth Proportional to 216,757, 299,119.90 and 118,639.76

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Solution

The fourth proportional to 216,757, 299,119.90 and 118,639.76 is: 163,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,757 : 299,119.90 = 118,639.76 : x
  2. Step 2: Convert to fraction form
    216,757/299,119.90 = 118,639.76/x
  3. Step 3: Cross multiply
    216,757x = 299,119.90 × 118,639.76
  4. Step 4: Simplify right side
    216,757x = 35,487,513,147.22
  5. Step 5: Solve for x
    x = 35,487,513,147.22/216,757
  6. Step 6: Final answer
    x = 163,720.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.