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Finding the Fourth Proportional to 485.94, 731.75 and 349.93

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Solution

The fourth proportional to 485.94, 731.75 and 349.93 is: 526.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    485.94 : 731.75 = 349.93 : x
  2. Step 2: Convert to fraction form
    485.94/731.75 = 349.93/x
  3. Step 3: Cross multiply
    485.94x = 731.75 × 349.93
  4. Step 4: Simplify right side
    485.94x = 256,061.28
  5. Step 5: Solve for x
    x = 256,061.28/485.94
  6. Step 6: Final answer
    x = 526.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.