Home / 288,929.06-398,724.64-161,616.50

Finding the Fourth Proportional to 288,929.06, 398,724.64 and 161,616.50

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Solution

The fourth proportional to 288,929.06, 398,724.64 and 161,616.50 is: 223,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,929.06 : 398,724.64 = 161,616.50 : x
  2. Step 2: Convert to fraction form
    288,929.06/398,724.64 = 161,616.50/x
  3. Step 3: Cross multiply
    288,929.06x = 398,724.64 × 161,616.50
  4. Step 4: Simplify right side
    288,929.06x = 64,440,480,780.56
  5. Step 5: Solve for x
    x = 64,440,480,780.56/288,929.06
  6. Step 6: Final answer
    x = 223,032.19

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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.