Home / 272,929.08-409,315.86-172,938.36

Finding the Fourth Proportional to 272,929.08, 409,315.86 and 172,938.36

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Solution

The fourth proportional to 272,929.08, 409,315.86 and 172,938.36 is: 259,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,929.08 : 409,315.86 = 172,938.36 : x
  2. Step 2: Convert to fraction form
    272,929.08/409,315.86 = 172,938.36/x
  3. Step 3: Cross multiply
    272,929.08x = 409,315.86 × 172,938.36
  4. Step 4: Simplify right side
    272,929.08x = 70,786,413,550.39
  5. Step 5: Solve for x
    x = 70,786,413,550.39/272,929.08
  6. Step 6: Final answer
    x = 259,358.27

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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.