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Finding the Fourth Proportional to 288,675.40, 432,936.30 and 88,995.40

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Solution

The fourth proportional to 288,675.40, 432,936.30 and 88,995.40 is: 133,469.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,675.40 : 432,936.30 = 88,995.40 : x
  2. Step 2: Convert to fraction form
    288,675.40/432,936.30 = 88,995.40/x
  3. Step 3: Cross multiply
    288,675.40x = 432,936.30 × 88,995.40
  4. Step 4: Simplify right side
    288,675.40x = 38,529,339,193.02
  5. Step 5: Solve for x
    x = 38,529,339,193.02/288,675.40
  6. Step 6: Final answer
    x = 133,469.42

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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.