Home / 259,790.21-357,134.34-223,357.49

Finding the Fourth Proportional to 259,790.21, 357,134.34 and 223,357.49

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Solution

The fourth proportional to 259,790.21, 357,134.34 and 223,357.49 is: 307,050.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,790.21 : 357,134.34 = 223,357.49 : x
  2. Step 2: Convert to fraction form
    259,790.21/357,134.34 = 223,357.49/x
  3. Step 3: Cross multiply
    259,790.21x = 357,134.34 × 223,357.49
  4. Step 4: Simplify right side
    259,790.21x = 79,768,628,658.42
  5. Step 5: Solve for x
    x = 79,768,628,658.42/259,790.21
  6. Step 6: Final answer
    x = 307,050.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.