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Finding the Fourth Proportional to 279,001.80, 385,003.53 and 151,674.66

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Solution

The fourth proportional to 279,001.80, 385,003.53 and 151,674.66 is: 209,300.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,001.80 : 385,003.53 = 151,674.66 : x
  2. Step 2: Convert to fraction form
    279,001.80/385,003.53 = 151,674.66/x
  3. Step 3: Cross multiply
    279,001.80x = 385,003.53 × 151,674.66
  4. Step 4: Simplify right side
    279,001.80x = 58,395,279,511.55
  5. Step 5: Solve for x
    x = 58,395,279,511.55/279,001.80
  6. Step 6: Final answer
    x = 209,300.73

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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.