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Finding the Fourth Proportional to 288,850.32, 433,346.40 and 99,313.56

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Solution

The fourth proportional to 288,850.32, 433,346.40 and 99,313.56 is: 148,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,850.32 : 433,346.40 = 99,313.56 : x
  2. Step 2: Convert to fraction form
    288,850.32/433,346.40 = 99,313.56/x
  3. Step 3: Cross multiply
    288,850.32x = 433,346.40 × 99,313.56
  4. Step 4: Simplify right side
    288,850.32x = 43,037,173,697.18
  5. Step 5: Solve for x
    x = 43,037,173,697.18/288,850.32
  6. Step 6: Final answer
    x = 148,994.72

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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.