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Finding the Fourth Proportional to 219,306.57, 328,971.59 and 69,558.22

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Solution

The fourth proportional to 219,306.57, 328,971.59 and 69,558.22 is: 104,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,306.57 : 328,971.59 = 69,558.22 : x
  2. Step 2: Convert to fraction form
    219,306.57/328,971.59 = 69,558.22/x
  3. Step 3: Cross multiply
    219,306.57x = 328,971.59 × 69,558.22
  4. Step 4: Simplify right side
    219,306.57x = 22,882,678,230.97
  5. Step 5: Solve for x
    x = 22,882,678,230.97/219,306.57
  6. Step 6: Final answer
    x = 104,341.05

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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.