Home / 388,052.70-581,378.55-163,010.40

Finding the Fourth Proportional to 388,052.70, 581,378.55 and 163,010.40

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Solution

The fourth proportional to 388,052.70, 581,378.55 and 163,010.40 is: 244,221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,052.70 : 581,378.55 = 163,010.40 : x
  2. Step 2: Convert to fraction form
    388,052.70/581,378.55 = 163,010.40/x
  3. Step 3: Cross multiply
    388,052.70x = 581,378.55 × 163,010.40
  4. Step 4: Simplify right side
    388,052.70x = 94,770,749,986.92
  5. Step 5: Solve for x
    x = 94,770,749,986.92/388,052.70
  6. Step 6: Final answer
    x = 244,221.34

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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.