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Finding the Fourth Proportional to 479.47, 718.53 and 370.75

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Solution

The fourth proportional to 479.47, 718.53 and 370.75 is: 555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.47 : 718.53 = 370.75 : x
  2. Step 2: Convert to fraction form
    479.47/718.53 = 370.75/x
  3. Step 3: Cross multiply
    479.47x = 718.53 × 370.75
  4. Step 4: Simplify right side
    479.47x = 266,393.14
  5. Step 5: Solve for x
    x = 266,393.14/479.47
  6. Step 6: Final answer
    x = 555.60

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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.