Home / 279,154.77-385,110.03-171,661.29

Finding the Fourth Proportional to 279,154.77, 385,110.03 and 171,661.29

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Solution

The fourth proportional to 279,154.77, 385,110.03 and 171,661.29 is: 236,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,154.77 : 385,110.03 = 171,661.29 : x
  2. Step 2: Convert to fraction form
    279,154.77/385,110.03 = 171,661.29/x
  3. Step 3: Cross multiply
    279,154.77x = 385,110.03 × 171,661.29
  4. Step 4: Simplify right side
    279,154.77x = 66,108,484,941.96
  5. Step 5: Solve for x
    x = 66,108,484,941.96/279,154.77
  6. Step 6: Final answer
    x = 236,816.60

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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.