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Finding the Fourth Proportional to 288,633.80, 432,950.70 and 88,936.40

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Solution

The fourth proportional to 288,633.80, 432,950.70 and 88,936.40 is: 133,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,633.80 : 432,950.70 = 88,936.40 : x
  2. Step 2: Convert to fraction form
    288,633.80/432,950.70 = 88,936.40/x
  3. Step 3: Cross multiply
    288,633.80x = 432,950.70 × 88,936.40
  4. Step 4: Simplify right side
    288,633.80x = 38,505,076,635.48
  5. Step 5: Solve for x
    x = 38,505,076,635.48/288,633.80
  6. Step 6: Final answer
    x = 133,404.60

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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.