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Finding the Fourth Proportional to 279,265.56, 385,387.44 and 151,941.12

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Solution

The fourth proportional to 279,265.56, 385,387.44 and 151,941.12 is: 209,679.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,265.56 : 385,387.44 = 151,941.12 : x
  2. Step 2: Convert to fraction form
    279,265.56/385,387.44 = 151,941.12/x
  3. Step 3: Cross multiply
    279,265.56x = 385,387.44 × 151,941.12
  4. Step 4: Simplify right side
    279,265.56x = 58,556,199,267.53
  5. Step 5: Solve for x
    x = 58,556,199,267.53/279,265.56
  6. Step 6: Final answer
    x = 209,679.27

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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.