Home / 304,579.78-456,370.29-215,673.68

Finding the Fourth Proportional to 304,579.78, 456,370.29 and 215,673.68

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Solution

The fourth proportional to 304,579.78, 456,370.29 and 215,673.68 is: 323,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,579.78 : 456,370.29 = 215,673.68 : x
  2. Step 2: Convert to fraction form
    304,579.78/456,370.29 = 215,673.68/x
  3. Step 3: Cross multiply
    304,579.78x = 456,370.29 × 215,673.68
  4. Step 4: Simplify right side
    304,579.78x = 98,427,061,027.89
  5. Step 5: Solve for x
    x = 98,427,061,027.89/304,579.78
  6. Step 6: Final answer
    x = 323,156.91

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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.