Home / 263,649.12-363,835.67-142,790.40

Finding the Fourth Proportional to 263,649.12, 363,835.67 and 142,790.40

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Solution

The fourth proportional to 263,649.12, 363,835.67 and 142,790.40 is: 197,050.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,649.12 : 363,835.67 = 142,790.40 : x
  2. Step 2: Convert to fraction form
    263,649.12/363,835.67 = 142,790.40/x
  3. Step 3: Cross multiply
    263,649.12x = 363,835.67 × 142,790.40
  4. Step 4: Simplify right side
    263,649.12x = 51,952,240,139.62
  5. Step 5: Solve for x
    x = 51,952,240,139.62/263,649.12
  6. Step 6: Final answer
    x = 197,050.69

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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.