Home / 387,636.48-581,679.36-162,979.20

Finding the Fourth Proportional to 387,636.48, 581,679.36 and 162,979.20

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Solution

The fourth proportional to 387,636.48, 581,679.36 and 162,979.20 is: 244,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,636.48 : 581,679.36 = 162,979.20 : x
  2. Step 2: Convert to fraction form
    387,636.48/581,679.36 = 162,979.20/x
  3. Step 3: Cross multiply
    387,636.48x = 581,679.36 × 162,979.20
  4. Step 4: Simplify right side
    387,636.48x = 94,801,636,749.31
  5. Step 5: Solve for x
    x = 94,801,636,749.31/387,636.48
  6. Step 6: Final answer
    x = 244,563.25

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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.