Home / 330,450.18-456,020.12-187,237.56

Finding the Fourth Proportional to 330,450.18, 456,020.12 and 187,237.56

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Solution

The fourth proportional to 330,450.18, 456,020.12 and 187,237.56 is: 258,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,450.18 : 456,020.12 = 187,237.56 : x
  2. Step 2: Convert to fraction form
    330,450.18/456,020.12 = 187,237.56/x
  3. Step 3: Cross multiply
    330,450.18x = 456,020.12 × 187,237.56
  4. Step 4: Simplify right side
    330,450.18x = 85,384,094,579.71
  5. Step 5: Solve for x
    x = 85,384,094,579.71/330,450.18
  6. Step 6: Final answer
    x = 258,387.19

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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.