Home / 386,910.08-533,967.78-214,838.72

Finding the Fourth Proportional to 386,910.08, 533,967.78 and 214,838.72

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Solution

The fourth proportional to 386,910.08, 533,967.78 and 214,838.72 is: 296,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,910.08 : 533,967.78 = 214,838.72 : x
  2. Step 2: Convert to fraction form
    386,910.08/533,967.78 = 214,838.72/x
  3. Step 3: Cross multiply
    386,910.08x = 533,967.78 × 214,838.72
  4. Step 4: Simplify right side
    386,910.08x = 114,716,954,376.44
  5. Step 5: Solve for x
    x = 114,716,954,376.44/386,910.08
  6. Step 6: Final answer
    x = 296,495.13

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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.