Home / 219,358.73-329,038.20-79,117.36

Finding the Fourth Proportional to 219,358.73, 329,038.20 and 79,117.36

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Solution

The fourth proportional to 219,358.73, 329,038.20 and 79,117.36 is: 118,676.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,358.73 : 329,038.20 = 79,117.36 : x
  2. Step 2: Convert to fraction form
    219,358.73/329,038.20 = 79,117.36/x
  3. Step 3: Cross multiply
    219,358.73x = 329,038.20 × 79,117.36
  4. Step 4: Simplify right side
    219,358.73x = 26,032,632,900.56
  5. Step 5: Solve for x
    x = 26,032,632,900.56/219,358.73
  6. Step 6: Final answer
    x = 118,676.07

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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.