Home / 215,027.70-296,779.35-142,431.45

Finding the Fourth Proportional to 215,027.70, 296,779.35 and 142,431.45

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Solution

The fourth proportional to 215,027.70, 296,779.35 and 142,431.45 is: 196,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,027.70 : 296,779.35 = 142,431.45 : x
  2. Step 2: Convert to fraction form
    215,027.70/296,779.35 = 142,431.45/x
  3. Step 3: Cross multiply
    215,027.70x = 296,779.35 × 142,431.45
  4. Step 4: Simplify right side
    215,027.70x = 42,270,713,150.56
  5. Step 5: Solve for x
    x = 42,270,713,150.56/215,027.70
  6. Step 6: Final answer
    x = 196,582.64

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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.