Home / 219,851.40-329,777.10-79,710.60

Finding the Fourth Proportional to 219,851.40, 329,777.10 and 79,710.60

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Solution

The fourth proportional to 219,851.40, 329,777.10 and 79,710.60 is: 119,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,851.40 : 329,777.10 = 79,710.60 : x
  2. Step 2: Convert to fraction form
    219,851.40/329,777.10 = 79,710.60/x
  3. Step 3: Cross multiply
    219,851.40x = 329,777.10 × 79,710.60
  4. Step 4: Simplify right side
    219,851.40x = 26,286,730,507.26
  5. Step 5: Solve for x
    x = 26,286,730,507.26/219,851.40
  6. Step 6: Final answer
    x = 119,565.90

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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.