Home / 309,267.05-426,781.31-181,950.84

Finding the Fourth Proportional to 309,267.05, 426,781.31 and 181,950.84

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Solution

The fourth proportional to 309,267.05, 426,781.31 and 181,950.84 is: 251,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,267.05 : 426,781.31 = 181,950.84 : x
  2. Step 2: Convert to fraction form
    309,267.05/426,781.31 = 181,950.84/x
  3. Step 3: Cross multiply
    309,267.05x = 426,781.31 × 181,950.84
  4. Step 4: Simplify right side
    309,267.05x = 77,653,216,941.05
  5. Step 5: Solve for x
    x = 77,653,216,941.05/309,267.05
  6. Step 6: Final answer
    x = 251,087.91

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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.