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Finding the Fourth Proportional to 476,311.65, 657,310.41 and 258,520.33

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Solution

The fourth proportional to 476,311.65, 657,310.41 and 258,520.33 is: 356,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,311.65 : 657,310.41 = 258,520.33 : x
  2. Step 2: Convert to fraction form
    476,311.65/657,310.41 = 258,520.33/x
  3. Step 3: Cross multiply
    476,311.65x = 657,310.41 × 258,520.33
  4. Step 4: Simplify right side
    476,311.65x = 169,928,103,957.82
  5. Step 5: Solve for x
    x = 169,928,103,957.82/476,311.65
  6. Step 6: Final answer
    x = 356,758.23

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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.