Home / 306,782.32-423,222.96-179,401.72

Finding the Fourth Proportional to 306,782.32, 423,222.96 and 179,401.72

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Solution

The fourth proportional to 306,782.32, 423,222.96 and 179,401.72 is: 247,494.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,782.32 : 423,222.96 = 179,401.72 : x
  2. Step 2: Convert to fraction form
    306,782.32/423,222.96 = 179,401.72/x
  3. Step 3: Cross multiply
    306,782.32x = 423,222.96 × 179,401.72
  4. Step 4: Simplify right side
    306,782.32x = 75,926,926,967.49
  5. Step 5: Solve for x
    x = 75,926,926,967.49/306,782.32
  6. Step 6: Final answer
    x = 247,494.47

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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.