Home / 279,145.16-385,219.24-151,822.88

Finding the Fourth Proportional to 279,145.16, 385,219.24 and 151,822.88

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Solution

The fourth proportional to 279,145.16, 385,219.24 and 151,822.88 is: 209,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,145.16 : 385,219.24 = 151,822.88 : x
  2. Step 2: Convert to fraction form
    279,145.16/385,219.24 = 151,822.88/x
  3. Step 3: Cross multiply
    279,145.16x = 385,219.24 × 151,822.88
  4. Step 4: Simplify right side
    279,145.16x = 58,485,091,763.00
  5. Step 5: Solve for x
    x = 58,485,091,763.00/279,145.16
  6. Step 6: Final answer
    x = 209,514.98

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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.