Home / 279,750.75-386,050.83-155,579.35

Finding the Fourth Proportional to 279,750.75, 386,050.83 and 155,579.35

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Solution

The fourth proportional to 279,750.75, 386,050.83 and 155,579.35 is: 214,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,750.75 : 386,050.83 = 155,579.35 : x
  2. Step 2: Convert to fraction form
    279,750.75/386,050.83 = 155,579.35/x
  3. Step 3: Cross multiply
    279,750.75x = 386,050.83 × 155,579.35
  4. Step 4: Simplify right side
    279,750.75x = 60,061,536,057.71
  5. Step 5: Solve for x
    x = 60,061,536,057.71/279,750.75
  6. Step 6: Final answer
    x = 214,696.60

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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.