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Finding the Fourth Proportional to 480,666.42, 663,323.97 and 265,821

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Solution

The fourth proportional to 480,666.42, 663,323.97 and 265,821 is: 366,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,666.42 : 663,323.97 = 265,821 : x
  2. Step 2: Convert to fraction form
    480,666.42/663,323.97 = 265,821/x
  3. Step 3: Cross multiply
    480,666.42x = 663,323.97 × 265,821
  4. Step 4: Simplify right side
    480,666.42x = 176,325,441,029.37
  5. Step 5: Solve for x
    x = 176,325,441,029.37/480,666.42
  6. Step 6: Final answer
    x = 366,835.36

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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.