Home / 384,208.56-576,312.96-103,725.60

Finding the Fourth Proportional to 384,208.56, 576,312.96 and 103,725.60

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Solution

The fourth proportional to 384,208.56, 576,312.96 and 103,725.60 is: 155,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,208.56 : 576,312.96 = 103,725.60 : x
  2. Step 2: Convert to fraction form
    384,208.56/576,312.96 = 103,725.60/x
  3. Step 3: Cross multiply
    384,208.56x = 576,312.96 × 103,725.60
  4. Step 4: Simplify right side
    384,208.56x = 59,778,407,563.78
  5. Step 5: Solve for x
    x = 59,778,407,563.78/384,208.56
  6. Step 6: Final answer
    x = 155,588.43

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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.