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Finding the Fourth Proportional to 351.04, 526.42 and 145.60

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Solution

The fourth proportional to 351.04, 526.42 and 145.60 is: 218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.04 : 526.42 = 145.60 : x
  2. Step 2: Convert to fraction form
    351.04/526.42 = 145.60/x
  3. Step 3: Cross multiply
    351.04x = 526.42 × 145.60
  4. Step 4: Simplify right side
    351.04x = 76,646.75
  5. Step 5: Solve for x
    x = 76,646.75/351.04
  6. Step 6: Final answer
    x = 218.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.