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Finding the Fourth Proportional to 304,987.72, 456,487.98 and 275,888.20

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Solution

The fourth proportional to 304,987.72, 456,487.98 and 275,888.20 is: 412,933.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,987.72 : 456,487.98 = 275,888.20 : x
  2. Step 2: Convert to fraction form
    304,987.72/456,487.98 = 275,888.20/x
  3. Step 3: Cross multiply
    304,987.72x = 456,487.98 × 275,888.20
  4. Step 4: Simplify right side
    304,987.72x = 125,939,647,123.84
  5. Step 5: Solve for x
    x = 125,939,647,123.84/304,987.72
  6. Step 6: Final answer
    x = 412,933.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.