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Finding the Fourth Proportional to 300,582.50, 414,872.08 and 187,383.38

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Solution

The fourth proportional to 300,582.50, 414,872.08 and 187,383.38 is: 258,631.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,582.50 : 414,872.08 = 187,383.38 : x
  2. Step 2: Convert to fraction form
    300,582.50/414,872.08 = 187,383.38/x
  3. Step 3: Cross multiply
    300,582.50x = 414,872.08 × 187,383.38
  4. Step 4: Simplify right side
    300,582.50x = 77,740,130,075.21
  5. Step 5: Solve for x
    x = 77,740,130,075.21/300,582.50
  6. Step 6: Final answer
    x = 258,631.59

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1.5x scale

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.