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Finding the Fourth Proportional to 219,956.40, 303,539.78 and 119,354.40

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Solution

The fourth proportional to 219,956.40, 303,539.78 and 119,354.40 is: 164,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,956.40 : 303,539.78 = 119,354.40 : x
  2. Step 2: Convert to fraction form
    219,956.40/303,539.78 = 119,354.40/x
  3. Step 3: Cross multiply
    219,956.40x = 303,539.78 × 119,354.40
  4. Step 4: Simplify right side
    219,956.40x = 36,228,808,318.03
  5. Step 5: Solve for x
    x = 36,228,808,318.03/219,956.40
  6. Step 6: Final answer
    x = 164,709.04

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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.