Home / 263,639.67-363,820.70-142,778.16

Finding the Fourth Proportional to 263,639.67, 363,820.70 and 142,778.16

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Solution

The fourth proportional to 263,639.67, 363,820.70 and 142,778.16 is: 197,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,639.67 : 363,820.70 = 142,778.16 : x
  2. Step 2: Convert to fraction form
    263,639.67/363,820.70 = 142,778.16/x
  3. Step 3: Cross multiply
    263,639.67x = 363,820.70 × 142,778.16
  4. Step 4: Simplify right side
    263,639.67x = 51,945,649,402.02
  5. Step 5: Solve for x
    x = 51,945,649,402.02/263,639.67
  6. Step 6: Final answer
    x = 197,032.75

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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.