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Finding the Fourth Proportional to 477.48, 659.56 and 384.58

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Solution

The fourth proportional to 477.48, 659.56 and 384.58 is: 531.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.48 : 659.56 = 384.58 : x
  2. Step 2: Convert to fraction form
    477.48/659.56 = 384.58/x
  3. Step 3: Cross multiply
    477.48x = 659.56 × 384.58
  4. Step 4: Simplify right side
    477.48x = 253,653.58
  5. Step 5: Solve for x
    x = 253,653.58/477.48
  6. Step 6: Final answer
    x = 531.23

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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.