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Finding the Fourth Proportional to 384,551.88, 530,692.30 and 212,480.93

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Solution

The fourth proportional to 384,551.88, 530,692.30 and 212,480.93 is: 293,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,551.88 : 530,692.30 = 212,480.93 : x
  2. Step 2: Convert to fraction form
    384,551.88/530,692.30 = 212,480.93/x
  3. Step 3: Cross multiply
    384,551.88x = 530,692.30 × 212,480.93
  4. Step 4: Simplify right side
    384,551.88x = 112,761,994,243.37
  5. Step 5: Solve for x
    x = 112,761,994,243.37/384,551.88
  6. Step 6: Final answer
    x = 293,229.60

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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.