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Finding the Fourth Proportional to 612,773.24, 919,184.58 and 213,454.40

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Solution

The fourth proportional to 612,773.24, 919,184.58 and 213,454.40 is: 320,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,773.24 : 919,184.58 = 213,454.40 : x
  2. Step 2: Convert to fraction form
    612,773.24/919,184.58 = 213,454.40/x
  3. Step 3: Cross multiply
    612,773.24x = 919,184.58 × 213,454.40
  4. Step 4: Simplify right side
    612,773.24x = 196,203,993,013.15
  5. Step 5: Solve for x
    x = 196,203,993,013.15/612,773.24
  6. Step 6: Final answer
    x = 320,190.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.