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Finding the Fourth Proportional to 340.41, 509.93 and 263.10

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Solution

The fourth proportional to 340.41, 509.93 and 263.10 is: 394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.41 : 509.93 = 263.10 : x
  2. Step 2: Convert to fraction form
    340.41/509.93 = 263.10/x
  3. Step 3: Cross multiply
    340.41x = 509.93 × 263.10
  4. Step 4: Simplify right side
    340.41x = 134,164.17
  5. Step 5: Solve for x
    x = 134,164.17/340.41
  6. Step 6: Final answer
    x = 394.13

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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.