Home / 386,582.94-533,511.09-216,828

Finding the Fourth Proportional to 386,582.94, 533,511.09 and 216,828

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Solution

The fourth proportional to 386,582.94, 533,511.09 and 216,828 is: 299,237.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,582.94 : 533,511.09 = 216,828 : x
  2. Step 2: Convert to fraction form
    386,582.94/533,511.09 = 216,828/x
  3. Step 3: Cross multiply
    386,582.94x = 533,511.09 × 216,828
  4. Step 4: Simplify right side
    386,582.94x = 115,680,142,622.52
  5. Step 5: Solve for x
    x = 115,680,142,622.52/386,582.94
  6. Step 6: Final answer
    x = 299,237.58

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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.