Home / 279,294.06-385,434.01-151,977.86

Finding the Fourth Proportional to 279,294.06, 385,434.01 and 151,977.86

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Solution

The fourth proportional to 279,294.06, 385,434.01 and 151,977.86 is: 209,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,294.06 : 385,434.01 = 151,977.86 : x
  2. Step 2: Convert to fraction form
    279,294.06/385,434.01 = 151,977.86/x
  3. Step 3: Cross multiply
    279,294.06x = 385,434.01 × 151,977.86
  4. Step 4: Simplify right side
    279,294.06x = 58,577,436,011.02
  5. Step 5: Solve for x
    x = 58,577,436,011.02/279,294.06
  6. Step 6: Final answer
    x = 209,733.91

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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.