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Finding the Fourth Proportional to 288,994.80, 433,524.60 and 89,313.60

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Solution

The fourth proportional to 288,994.80, 433,524.60 and 89,313.60 is: 133,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,994.80 : 433,524.60 = 89,313.60 : x
  2. Step 2: Convert to fraction form
    288,994.80/433,524.60 = 89,313.60/x
  3. Step 3: Cross multiply
    288,994.80x = 433,524.60 × 89,313.60
  4. Step 4: Simplify right side
    288,994.80x = 38,719,642,714.56
  5. Step 5: Solve for x
    x = 38,719,642,714.56/288,994.80
  6. Step 6: Final answer
    x = 133,980.41

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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.