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Finding the Fourth Proportional to 533.33, 735.93 and 312.23

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Solution

The fourth proportional to 533.33, 735.93 and 312.23 is: 430.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.33 : 735.93 = 312.23 : x
  2. Step 2: Convert to fraction form
    533.33/735.93 = 312.23/x
  3. Step 3: Cross multiply
    533.33x = 735.93 × 312.23
  4. Step 4: Simplify right side
    533.33x = 229,779.42
  5. Step 5: Solve for x
    x = 229,779.42/533.33
  6. Step 6: Final answer
    x = 430.84

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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.