Home / 387,580.23-534,905.01-215,515.35

Finding the Fourth Proportional to 387,580.23, 534,905.01 and 215,515.35

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Solution

The fourth proportional to 387,580.23, 534,905.01 and 215,515.35 is: 297,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,580.23 : 534,905.01 = 215,515.35 : x
  2. Step 2: Convert to fraction form
    387,580.23/534,905.01 = 215,515.35/x
  3. Step 3: Cross multiply
    387,580.23x = 534,905.01 × 215,515.35
  4. Step 4: Simplify right side
    387,580.23x = 115,280,240,446.90
  5. Step 5: Solve for x
    x = 115,280,240,446.90/387,580.23
  6. Step 6: Final answer
    x = 297,435.81

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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.