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Finding the Fourth Proportional to 389,800.56, 537,924.79 and 210,952.56

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Solution

The fourth proportional to 389,800.56, 537,924.79 and 210,952.56 is: 291,114.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,800.56 : 537,924.79 = 210,952.56 : x
  2. Step 2: Convert to fraction form
    389,800.56/537,924.79 = 210,952.56/x
  3. Step 3: Cross multiply
    389,800.56x = 537,924.79 × 210,952.56
  4. Step 4: Simplify right side
    389,800.56x = 113,476,611,537.96
  5. Step 5: Solve for x
    x = 113,476,611,537.96/389,800.56
  6. Step 6: Final answer
    x = 291,114.54

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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.