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Finding the Fourth Proportional to 354.66, 528.06 and 353.58

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Solution

The fourth proportional to 354.66, 528.06 and 353.58 is: 526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.66 : 528.06 = 353.58 : x
  2. Step 2: Convert to fraction form
    354.66/528.06 = 353.58/x
  3. Step 3: Cross multiply
    354.66x = 528.06 × 353.58
  4. Step 4: Simplify right side
    354.66x = 186,711.45
  5. Step 5: Solve for x
    x = 186,711.45/354.66
  6. Step 6: Final answer
    x = 526.45

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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.