Home / 286,542.12-429,658.74-219,817.56

Finding the Fourth Proportional to 286,542.12, 429,658.74 and 219,817.56

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Solution

The fourth proportional to 286,542.12, 429,658.74 and 219,817.56 is: 329,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,542.12 : 429,658.74 = 219,817.56 : x
  2. Step 2: Convert to fraction form
    286,542.12/429,658.74 = 219,817.56/x
  3. Step 3: Cross multiply
    286,542.12x = 429,658.74 × 219,817.56
  4. Step 4: Simplify right side
    286,542.12x = 94,446,535,859.47
  5. Step 5: Solve for x
    x = 94,446,535,859.47/286,542.12
  6. Step 6: Final answer
    x = 329,607.86

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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.