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Finding the Fourth Proportional to 219,318.75, 329,009.51 and 67,528.67

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Solution

The fourth proportional to 219,318.75, 329,009.51 and 67,528.67 is: 101,302.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,318.75 : 329,009.51 = 67,528.67 : x
  2. Step 2: Convert to fraction form
    219,318.75/329,009.51 = 67,528.67/x
  3. Step 3: Cross multiply
    219,318.75x = 329,009.51 × 67,528.67
  4. Step 4: Simplify right side
    219,318.75x = 22,217,574,627.65
  5. Step 5: Solve for x
    x = 22,217,574,627.65/219,318.75
  6. Step 6: Final answer
    x = 101,302.67

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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.