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Finding the Fourth Proportional to 279,677.70, 385,953.30 and 152,353.35

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Solution

The fourth proportional to 279,677.70, 385,953.30 and 152,353.35 is: 210,246.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,677.70 : 385,953.30 = 152,353.35 : x
  2. Step 2: Convert to fraction form
    279,677.70/385,953.30 = 152,353.35/x
  3. Step 3: Cross multiply
    279,677.70x = 385,953.30 × 152,353.35
  4. Step 4: Simplify right side
    279,677.70x = 58,801,278,198.56
  5. Step 5: Solve for x
    x = 58,801,278,198.56/279,677.70
  6. Step 6: Final answer
    x = 210,246.57

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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.