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Finding the Fourth Proportional to 362.88, 543.51 and 313.47

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Solution

The fourth proportional to 362.88, 543.51 and 313.47 is: 469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.88 : 543.51 = 313.47 : x
  2. Step 2: Convert to fraction form
    362.88/543.51 = 313.47/x
  3. Step 3: Cross multiply
    362.88x = 543.51 × 313.47
  4. Step 4: Simplify right side
    362.88x = 170,374.08
  5. Step 5: Solve for x
    x = 170,374.08/362.88
  6. Step 6: Final answer
    x = 469.51

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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.