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Finding the Fourth Proportional to 560.09, 840.33 and 354.80

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Solution

The fourth proportional to 560.09, 840.33 and 354.80 is: 532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.09 : 840.33 = 354.80 : x
  2. Step 2: Convert to fraction form
    560.09/840.33 = 354.80/x
  3. Step 3: Cross multiply
    560.09x = 840.33 × 354.80
  4. Step 4: Simplify right side
    560.09x = 298,149.08
  5. Step 5: Solve for x
    x = 298,149.08/560.09
  6. Step 6: Final answer
    x = 532.32

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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.