Home / 259,307.04-389,064.24-111,666.72

Finding the Fourth Proportional to 259,307.04, 389,064.24 and 111,666.72

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Solution

The fourth proportional to 259,307.04, 389,064.24 and 111,666.72 is: 167,544.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,307.04 : 389,064.24 = 111,666.72 : x
  2. Step 2: Convert to fraction form
    259,307.04/389,064.24 = 111,666.72/x
  3. Step 3: Cross multiply
    259,307.04x = 389,064.24 × 111,666.72
  4. Step 4: Simplify right side
    259,307.04x = 43,445,527,550.09
  5. Step 5: Solve for x
    x = 43,445,527,550.09/259,307.04
  6. Step 6: Final answer
    x = 167,544.73

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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.