Home / 219,089.40-328,634.10-112,801.20

Finding the Fourth Proportional to 219,089.40, 328,634.10 and 112,801.20

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Solution

The fourth proportional to 219,089.40, 328,634.10 and 112,801.20 is: 169,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,089.40 : 328,634.10 = 112,801.20 : x
  2. Step 2: Convert to fraction form
    219,089.40/328,634.10 = 112,801.20/x
  3. Step 3: Cross multiply
    219,089.40x = 328,634.10 × 112,801.20
  4. Step 4: Simplify right side
    219,089.40x = 37,070,320,840.92
  5. Step 5: Solve for x
    x = 37,070,320,840.92/219,089.40
  6. Step 6: Final answer
    x = 169,201.80

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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.