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Finding the Fourth Proportional to 219,809.10, 330,102.45 and 170,010.30

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Solution

The fourth proportional to 219,809.10, 330,102.45 and 170,010.30 is: 255,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,809.10 : 330,102.45 = 170,010.30 : x
  2. Step 2: Convert to fraction form
    219,809.10/330,102.45 = 170,010.30/x
  3. Step 3: Cross multiply
    219,809.10x = 330,102.45 × 170,010.30
  4. Step 4: Simplify right side
    219,809.10x = 56,120,816,555.24
  5. Step 5: Solve for x
    x = 56,120,816,555.24/219,809.10
  6. Step 6: Final answer
    x = 255,316.17

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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.