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Finding the Fourth Proportional to 359.59, 540.93 and 313.46

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Solution

The fourth proportional to 359.59, 540.93 and 313.46 is: 471.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.59 : 540.93 = 313.46 : x
  2. Step 2: Convert to fraction form
    359.59/540.93 = 313.46/x
  3. Step 3: Cross multiply
    359.59x = 540.93 × 313.46
  4. Step 4: Simplify right side
    359.59x = 169,559.92
  5. Step 5: Solve for x
    x = 169,559.92/359.59
  6. Step 6: Final answer
    x = 471.54

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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.