Home / 219,732.09-329,598.27-79,457.91

Finding the Fourth Proportional to 219,732.09, 329,598.27 and 79,457.91

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Solution

The fourth proportional to 219,732.09, 329,598.27 and 79,457.91 is: 119,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,732.09 : 329,598.27 = 79,457.91 : x
  2. Step 2: Convert to fraction form
    219,732.09/329,598.27 = 79,457.91/x
  3. Step 3: Cross multiply
    219,732.09x = 329,598.27 × 79,457.91
  4. Step 4: Simplify right side
    219,732.09x = 26,189,189,673.82
  5. Step 5: Solve for x
    x = 26,189,189,673.82/219,732.09
  6. Step 6: Final answer
    x = 119,186.91

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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.