Home / 279,142.42-385,092.20-186,029.08

Finding the Fourth Proportional to 279,142.42, 385,092.20 and 186,029.08

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Solution

The fourth proportional to 279,142.42, 385,092.20 and 186,029.08 is: 256,637.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,142.42 : 385,092.20 = 186,029.08 : x
  2. Step 2: Convert to fraction form
    279,142.42/385,092.20 = 186,029.08/x
  3. Step 3: Cross multiply
    279,142.42x = 385,092.20 × 186,029.08
  4. Step 4: Simplify right side
    279,142.42x = 71,638,347,681.18
  5. Step 5: Solve for x
    x = 71,638,347,681.18/279,142.42
  6. Step 6: Final answer
    x = 256,637.27

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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.