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Finding the Fourth Proportional to 391,705.00, 540,718.25 and 264,552.82

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Solution

The fourth proportional to 391,705.00, 540,718.25 and 264,552.82 is: 365,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,705.00 : 540,718.25 = 264,552.82 : x
  2. Step 2: Convert to fraction form
    391,705.00/540,718.25 = 264,552.82/x
  3. Step 3: Cross multiply
    391,705.00x = 540,718.25 × 264,552.82
  4. Step 4: Simplify right side
    391,705.00x = 143,048,535,188.41
  5. Step 5: Solve for x
    x = 143,048,535,188.41/391,705.00
  6. Step 6: Final answer
    x = 365,194.56

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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.