Home / 259,334.08-389,066.72-72,345.44

Finding the Fourth Proportional to 259,334.08, 389,066.72 and 72,345.44

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Solution

The fourth proportional to 259,334.08, 389,066.72 and 72,345.44 is: 108,536.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,334.08 : 389,066.72 = 72,345.44 : x
  2. Step 2: Convert to fraction form
    259,334.08/389,066.72 = 72,345.44/x
  3. Step 3: Cross multiply
    259,334.08x = 389,066.72 × 72,345.44
  4. Step 4: Simplify right side
    259,334.08x = 28,147,203,047.76
  5. Step 5: Solve for x
    x = 28,147,203,047.76/259,334.08
  6. Step 6: Final answer
    x = 108,536.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.