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Finding the Fourth Proportional to 384,027.30, 576,040.95 and 218,139.30

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Solution

The fourth proportional to 384,027.30, 576,040.95 and 218,139.30 is: 327,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,027.30 : 576,040.95 = 218,139.30 : x
  2. Step 2: Convert to fraction form
    384,027.30/576,040.95 = 218,139.30/x
  3. Step 3: Cross multiply
    384,027.30x = 576,040.95 × 218,139.30
  4. Step 4: Simplify right side
    384,027.30x = 125,657,169,604.34
  5. Step 5: Solve for x
    x = 125,657,169,604.34/384,027.30
  6. Step 6: Final answer
    x = 327,208.95

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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.