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Finding the Fourth Proportional to 340.16, 469.40 and 192.82

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Solution

The fourth proportional to 340.16, 469.40 and 192.82 is: 266.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.16 : 469.40 = 192.82 : x
  2. Step 2: Convert to fraction form
    340.16/469.40 = 192.82/x
  3. Step 3: Cross multiply
    340.16x = 469.40 × 192.82
  4. Step 4: Simplify right side
    340.16x = 90,509.71
  5. Step 5: Solve for x
    x = 90,509.71/340.16
  6. Step 6: Final answer
    x = 266.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.