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Finding the Fourth Proportional to 345,189.99, 476,116.80 and 230,410.76

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Solution

The fourth proportional to 345,189.99, 476,116.80 and 230,410.76 is: 317,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,189.99 : 476,116.80 = 230,410.76 : x
  2. Step 2: Convert to fraction form
    345,189.99/476,116.80 = 230,410.76/x
  3. Step 3: Cross multiply
    345,189.99x = 476,116.80 × 230,410.76
  4. Step 4: Simplify right side
    345,189.99x = 109,702,433,736.77
  5. Step 5: Solve for x
    x = 109,702,433,736.77/345,189.99
  6. Step 6: Final answer
    x = 317,803.06

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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.