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Finding the Fourth Proportional to 538.02, 740.14 and 471.33

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Solution

The fourth proportional to 538.02, 740.14 and 471.33 is: 648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.02 : 740.14 = 471.33 : x
  2. Step 2: Convert to fraction form
    538.02/740.14 = 471.33/x
  3. Step 3: Cross multiply
    538.02x = 740.14 × 471.33
  4. Step 4: Simplify right side
    538.02x = 348,849.01
  5. Step 5: Solve for x
    x = 348,849.01/538.02
  6. Step 6: Final answer
    x = 648.39

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1.5x scale

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.