Home / 442,028.40-662,942.88-142,451.52

Finding the Fourth Proportional to 442,028.40, 662,942.88 and 142,451.52

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Solution

The fourth proportional to 442,028.40, 662,942.88 and 142,451.52 is: 213,645.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,028.40 : 662,942.88 = 142,451.52 : x
  2. Step 2: Convert to fraction form
    442,028.40/662,942.88 = 142,451.52/x
  3. Step 3: Cross multiply
    442,028.40x = 662,942.88 × 142,451.52
  4. Step 4: Simplify right side
    442,028.40x = 94,437,220,929.18
  5. Step 5: Solve for x
    x = 94,437,220,929.18/442,028.40
  6. Step 6: Final answer
    x = 213,645.14

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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.