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Finding the Fourth Proportional to 355.04, 530.06 and 300.36

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Solution

The fourth proportional to 355.04, 530.06 and 300.36 is: 448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.04 : 530.06 = 300.36 : x
  2. Step 2: Convert to fraction form
    355.04/530.06 = 300.36/x
  3. Step 3: Cross multiply
    355.04x = 530.06 × 300.36
  4. Step 4: Simplify right side
    355.04x = 159,208.82
  5. Step 5: Solve for x
    x = 159,208.82/355.04
  6. Step 6: Final answer
    x = 448.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.