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Finding the Fourth Proportional to 219,740.40, 329,610.60 and 181,686.60

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Solution

The fourth proportional to 219,740.40, 329,610.60 and 181,686.60 is: 272,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,740.40 : 329,610.60 = 181,686.60 : x
  2. Step 2: Convert to fraction form
    219,740.40/329,610.60 = 181,686.60/x
  3. Step 3: Cross multiply
    219,740.40x = 329,610.60 × 181,686.60
  4. Step 4: Simplify right side
    219,740.40x = 59,885,829,237.96
  5. Step 5: Solve for x
    x = 59,885,829,237.96/219,740.40
  6. Step 6: Final answer
    x = 272,529.90

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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.