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Finding the Fourth Proportional to 445.99, 614.20 and 436.45

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Solution

The fourth proportional to 445.99, 614.20 and 436.45 is: 601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.99 : 614.20 = 436.45 : x
  2. Step 2: Convert to fraction form
    445.99/614.20 = 436.45/x
  3. Step 3: Cross multiply
    445.99x = 614.20 × 436.45
  4. Step 4: Simplify right side
    445.99x = 268,068.36
  5. Step 5: Solve for x
    x = 268,068.36/445.99
  6. Step 6: Final answer
    x = 601.06

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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.