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Finding the Fourth Proportional to 355.06, 530.23 and 336.84

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Solution

The fourth proportional to 355.06, 530.23 and 336.84 is: 503.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.06 : 530.23 = 336.84 : x
  2. Step 2: Convert to fraction form
    355.06/530.23 = 336.84/x
  3. Step 3: Cross multiply
    355.06x = 530.23 × 336.84
  4. Step 4: Simplify right side
    355.06x = 178,602.67
  5. Step 5: Solve for x
    x = 178,602.67/355.06
  6. Step 6: Final answer
    x = 503.02

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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.