Home / 279,143.08-385,219.27-151,819.60

Finding the Fourth Proportional to 279,143.08, 385,219.27 and 151,819.60

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Solution

The fourth proportional to 279,143.08, 385,219.27 and 151,819.60 is: 209,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,143.08 : 385,219.27 = 151,819.60 : x
  2. Step 2: Convert to fraction form
    279,143.08/385,219.27 = 151,819.60/x
  3. Step 3: Cross multiply
    279,143.08x = 385,219.27 × 151,819.60
  4. Step 4: Simplify right side
    279,143.08x = 58,483,835,483.69
  5. Step 5: Solve for x
    x = 58,483,835,483.69/279,143.08
  6. Step 6: Final answer
    x = 209,512.04

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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.