Home / 263,409.90-363,505.69-142,551.21

Finding the Fourth Proportional to 263,409.90, 363,505.69 and 142,551.21

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Solution

The fourth proportional to 263,409.90, 363,505.69 and 142,551.21 is: 196,720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,409.90 : 363,505.69 = 142,551.21 : x
  2. Step 2: Convert to fraction form
    263,409.90/363,505.69 = 142,551.21/x
  3. Step 3: Cross multiply
    263,409.90x = 363,505.69 × 142,551.21
  4. Step 4: Simplify right side
    263,409.90x = 51,818,177,492.72
  5. Step 5: Solve for x
    x = 51,818,177,492.72/263,409.90
  6. Step 6: Final answer
    x = 196,720.69

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1.5x scale

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.