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Finding the Fourth Proportional to 163,482, 243,792.38 and 161,987.28

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Solution

The fourth proportional to 163,482, 243,792.38 and 161,987.28 is: 241,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,482 : 243,792.38 = 161,987.28 : x
  2. Step 2: Convert to fraction form
    163,482/243,792.38 = 161,987.28/x
  3. Step 3: Cross multiply
    163,482x = 243,792.38 × 161,987.28
  4. Step 4: Simplify right side
    163,482x = 39,491,264,520.93
  5. Step 5: Solve for x
    x = 39,491,264,520.93/163,482
  6. Step 6: Final answer
    x = 241,563.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.