Home / 279,115.04-385,043.40-165,857.60

Finding the Fourth Proportional to 279,115.04, 385,043.40 and 165,857.60

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Solution

The fourth proportional to 279,115.04, 385,043.40 and 165,857.60 is: 228,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,115.04 : 385,043.40 = 165,857.60 : x
  2. Step 2: Convert to fraction form
    279,115.04/385,043.40 = 165,857.60/x
  3. Step 3: Cross multiply
    279,115.04x = 385,043.40 × 165,857.60
  4. Step 4: Simplify right side
    279,115.04x = 63,862,374,219.84
  5. Step 5: Solve for x
    x = 63,862,374,219.84/279,115.04
  6. Step 6: Final answer
    x = 228,803.06

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1.5x scale

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.