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Finding the Fourth Proportional to 1,533.94, 2,300.81 and 493.66

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Solution

The fourth proportional to 1,533.94, 2,300.81 and 493.66 is: 740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.94 : 2,300.81 = 493.66 : x
  2. Step 2: Convert to fraction form
    1,533.94/2,300.81 = 493.66/x
  3. Step 3: Cross multiply
    1,533.94x = 2,300.81 × 493.66
  4. Step 4: Simplify right side
    1,533.94x = 1,135,818.27
  5. Step 5: Solve for x
    x = 1,135,818.27/1,533.94
  6. Step 6: Final answer
    x = 740.46

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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.