Home / 215,027.45-296,779.01-142,431.20

Finding the Fourth Proportional to 215,027.45, 296,779.01 and 142,431.20

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Solution

The fourth proportional to 215,027.45, 296,779.01 and 142,431.20 is: 196,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,027.45 : 296,779.01 = 142,431.20 : x
  2. Step 2: Convert to fraction form
    215,027.45/296,779.01 = 142,431.20/x
  3. Step 3: Cross multiply
    215,027.45x = 296,779.01 × 142,431.20
  4. Step 4: Simplify right side
    215,027.45x = 42,270,590,529.11
  5. Step 5: Solve for x
    x = 42,270,590,529.11/215,027.45
  6. Step 6: Final answer
    x = 196,582.30

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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.