Home / 288,679.28-433,036.63-111,186.81

Finding the Fourth Proportional to 288,679.28, 433,036.63 and 111,186.81

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Solution

The fourth proportional to 288,679.28, 433,036.63 and 111,186.81 is: 166,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,679.28 : 433,036.63 = 111,186.81 : x
  2. Step 2: Convert to fraction form
    288,679.28/433,036.63 = 111,186.81/x
  3. Step 3: Cross multiply
    288,679.28x = 433,036.63 × 111,186.81
  4. Step 4: Simplify right side
    288,679.28x = 48,147,961,502.85
  5. Step 5: Solve for x
    x = 48,147,961,502.85/288,679.28
  6. Step 6: Final answer
    x = 166,787.04

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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.