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Finding the Fourth Proportional to 288,527.70, 397,909.35 and 240,288.96

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Solution

The fourth proportional to 288,527.70, 397,909.35 and 240,288.96 is: 331,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,527.70 : 397,909.35 = 240,288.96 : x
  2. Step 2: Convert to fraction form
    288,527.70/397,909.35 = 240,288.96/x
  3. Step 3: Cross multiply
    288,527.70x = 397,909.35 × 240,288.96
  4. Step 4: Simplify right side
    288,527.70x = 95,613,223,885.78
  5. Step 5: Solve for x
    x = 95,613,223,885.78/288,527.70
  6. Step 6: Final answer
    x = 331,383.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.