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Finding the Fourth Proportional to 440.03, 659.61 and 357.93

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Solution

The fourth proportional to 440.03, 659.61 and 357.93 is: 536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.03 : 659.61 = 357.93 : x
  2. Step 2: Convert to fraction form
    440.03/659.61 = 357.93/x
  3. Step 3: Cross multiply
    440.03x = 659.61 × 357.93
  4. Step 4: Simplify right side
    440.03x = 236,094.21
  5. Step 5: Solve for x
    x = 236,094.21/440.03
  6. Step 6: Final answer
    x = 536.54

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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.