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Finding the Fourth Proportional to 340.04, 509.69 and 177.74

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Solution

The fourth proportional to 340.04, 509.69 and 177.74 is: 266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.04 : 509.69 = 177.74 : x
  2. Step 2: Convert to fraction form
    340.04/509.69 = 177.74/x
  3. Step 3: Cross multiply
    340.04x = 509.69 × 177.74
  4. Step 4: Simplify right side
    340.04x = 90,588.86
  5. Step 5: Solve for x
    x = 90,588.86/340.04
  6. Step 6: Final answer
    x = 266.41

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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.