Home / 320,929.31-442,896.29-177,689.35

Finding the Fourth Proportional to 320,929.31, 442,896.29 and 177,689.35

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Solution

The fourth proportional to 320,929.31, 442,896.29 and 177,689.35 is: 245,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,929.31 : 442,896.29 = 177,689.35 : x
  2. Step 2: Convert to fraction form
    320,929.31/442,896.29 = 177,689.35/x
  3. Step 3: Cross multiply
    320,929.31x = 442,896.29 × 177,689.35
  4. Step 4: Simplify right side
    320,929.31x = 78,697,953,887.51
  5. Step 5: Solve for x
    x = 78,697,953,887.51/320,929.31
  6. Step 6: Final answer
    x = 245,218.97

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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.