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Finding the Fourth Proportional to 288,816.94, 433,231.35 and 89,137.46

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Solution

The fourth proportional to 288,816.94, 433,231.35 and 89,137.46 is: 133,708.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,816.94 : 433,231.35 = 89,137.46 : x
  2. Step 2: Convert to fraction form
    288,816.94/433,231.35 = 89,137.46/x
  3. Step 3: Cross multiply
    288,816.94x = 433,231.35 × 89,137.46
  4. Step 4: Simplify right side
    288,816.94x = 38,617,142,131.37
  5. Step 5: Solve for x
    x = 38,617,142,131.37/288,816.94
  6. Step 6: Final answer
    x = 133,708.02

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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.