Home / 387,747.81-581,807.61-200,759.31

Finding the Fourth Proportional to 387,747.81, 581,807.61 and 200,759.31

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Solution

The fourth proportional to 387,747.81, 581,807.61 and 200,759.31 is: 301,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,747.81 : 581,807.61 = 200,759.31 : x
  2. Step 2: Convert to fraction form
    387,747.81/581,807.61 = 200,759.31/x
  3. Step 3: Cross multiply
    387,747.81x = 581,807.61 × 200,759.31
  4. Step 4: Simplify right side
    387,747.81x = 116,803,294,336.35
  5. Step 5: Solve for x
    x = 116,803,294,336.35/387,747.81
  6. Step 6: Final answer
    x = 301,235.21

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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.