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Finding the Fourth Proportional to 384,602.98, 530,757.72 and 212,524.90

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Solution

The fourth proportional to 384,602.98, 530,757.72 and 212,524.90 is: 293,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,602.98 : 530,757.72 = 212,524.90 : x
  2. Step 2: Convert to fraction form
    384,602.98/530,757.72 = 212,524.90/x
  3. Step 3: Cross multiply
    384,602.98x = 530,757.72 × 212,524.90
  4. Step 4: Simplify right side
    384,602.98x = 112,799,231,367.23
  5. Step 5: Solve for x
    x = 112,799,231,367.23/384,602.98
  6. Step 6: Final answer
    x = 293,287.46

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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.