Home / 387,821.36-581,727.68-151,330.16

Finding the Fourth Proportional to 387,821.36, 581,727.68 and 151,330.16

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Solution

The fourth proportional to 387,821.36, 581,727.68 and 151,330.16 is: 226,993.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,821.36 : 581,727.68 = 151,330.16 : x
  2. Step 2: Convert to fraction form
    387,821.36/581,727.68 = 151,330.16/x
  3. Step 3: Cross multiply
    387,821.36x = 581,727.68 × 151,330.16
  4. Step 4: Simplify right side
    387,821.36x = 88,032,942,890.83
  5. Step 5: Solve for x
    x = 88,032,942,890.83/387,821.36
  6. Step 6: Final answer
    x = 226,993.54

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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.