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Finding the Fourth Proportional to 330,768.81, 456,459.84 and 179,865.81

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Solution

The fourth proportional to 330,768.81, 456,459.84 and 179,865.81 is: 248,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,768.81 : 456,459.84 = 179,865.81 : x
  2. Step 2: Convert to fraction form
    330,768.81/456,459.84 = 179,865.81/x
  3. Step 3: Cross multiply
    330,768.81x = 456,459.84 × 179,865.81
  4. Step 4: Simplify right side
    330,768.81x = 82,101,518,854.07
  5. Step 5: Solve for x
    x = 82,101,518,854.07/330,768.81
  6. Step 6: Final answer
    x = 248,214.21

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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.