Home / 306,819.99-423,049.29-210,070.76

Finding the Fourth Proportional to 306,819.99, 423,049.29 and 210,070.76

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Solution

The fourth proportional to 306,819.99, 423,049.29 and 210,070.76 is: 289,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,819.99 : 423,049.29 = 210,070.76 : x
  2. Step 2: Convert to fraction form
    306,819.99/423,049.29 = 210,070.76/x
  3. Step 3: Cross multiply
    306,819.99x = 423,049.29 × 210,070.76
  4. Step 4: Simplify right side
    306,819.99x = 88,870,285,867.76
  5. Step 5: Solve for x
    x = 88,870,285,867.76/306,819.99
  6. Step 6: Final answer
    x = 289,649.60

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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.