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Finding the Fourth Proportional to 341.88, 509.40 and 340.51

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Solution

The fourth proportional to 341.88, 509.40 and 340.51 is: 507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.88 : 509.40 = 340.51 : x
  2. Step 2: Convert to fraction form
    341.88/509.40 = 340.51/x
  3. Step 3: Cross multiply
    341.88x = 509.40 × 340.51
  4. Step 4: Simplify right side
    341.88x = 173,454.09
  5. Step 5: Solve for x
    x = 173,454.09/341.88
  6. Step 6: Final answer
    x = 507.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.