Home / 219,780.36-329,670.24-79,506.12

Finding the Fourth Proportional to 219,780.36, 329,670.24 and 79,506.12

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Solution

The fourth proportional to 219,780.36, 329,670.24 and 79,506.12 is: 119,259.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,780.36 : 329,670.24 = 79,506.12 : x
  2. Step 2: Convert to fraction form
    219,780.36/329,670.24 = 79,506.12/x
  3. Step 3: Cross multiply
    219,780.36x = 329,670.24 × 79,506.12
  4. Step 4: Simplify right side
    219,780.36x = 26,210,801,661.87
  5. Step 5: Solve for x
    x = 26,210,801,661.87/219,780.36
  6. Step 6: Final answer
    x = 119,259.07

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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.