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Finding the Fourth Proportional to 569.13, 785.88 and 348.15

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Solution

The fourth proportional to 569.13, 785.88 and 348.15 is: 480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.13 : 785.88 = 348.15 : x
  2. Step 2: Convert to fraction form
    569.13/785.88 = 348.15/x
  3. Step 3: Cross multiply
    569.13x = 785.88 × 348.15
  4. Step 4: Simplify right side
    569.13x = 273,601.67
  5. Step 5: Solve for x
    x = 273,601.67/569.13
  6. Step 6: Final answer
    x = 480.74

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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.