Home / 306,723.98-423,288.45-167,031.79

Finding the Fourth Proportional to 306,723.98, 423,288.45 and 167,031.79

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Solution

The fourth proportional to 306,723.98, 423,288.45 and 167,031.79 is: 230,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,723.98 : 423,288.45 = 167,031.79 : x
  2. Step 2: Convert to fraction form
    306,723.98/423,288.45 = 167,031.79/x
  3. Step 3: Cross multiply
    306,723.98x = 423,288.45 × 167,031.79
  4. Step 4: Simplify right side
    306,723.98x = 70,702,626,431.60
  5. Step 5: Solve for x
    x = 70,702,626,431.60/306,723.98
  6. Step 6: Final answer
    x = 230,508.96

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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.