Home / 219,420.33-329,114.09-79,178.96

Finding the Fourth Proportional to 219,420.33, 329,114.09 and 79,178.96

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Solution

The fourth proportional to 219,420.33, 329,114.09 and 79,178.96 is: 118,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,420.33 : 329,114.09 = 79,178.96 : x
  2. Step 2: Convert to fraction form
    219,420.33/329,114.09 = 79,178.96/x
  3. Step 3: Cross multiply
    219,420.33x = 329,114.09 × 79,178.96
  4. Step 4: Simplify right side
    219,420.33x = 26,058,909,326.08
  5. Step 5: Solve for x
    x = 26,058,909,326.08/219,420.33
  6. Step 6: Final answer
    x = 118,762.51

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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.