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Finding the Fourth Proportional to 288,896.20, 433,473.90 and 131,043.40

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Solution

The fourth proportional to 288,896.20, 433,473.90 and 131,043.40 is: 196,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,896.20 : 433,473.90 = 131,043.40 : x
  2. Step 2: Convert to fraction form
    288,896.20/433,473.90 = 131,043.40/x
  3. Step 3: Cross multiply
    288,896.20x = 433,473.90 × 131,043.40
  4. Step 4: Simplify right side
    288,896.20x = 56,803,893,667.26
  5. Step 5: Solve for x
    x = 56,803,893,667.26/288,896.20
  6. Step 6: Final answer
    x = 196,623.89

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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.