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Finding the Fourth Proportional to 295,228.80, 442,900.80 and 126,748.80

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Solution

The fourth proportional to 295,228.80, 442,900.80 and 126,748.80 is: 190,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,228.80 : 442,900.80 = 126,748.80 : x
  2. Step 2: Convert to fraction form
    295,228.80/442,900.80 = 126,748.80/x
  3. Step 3: Cross multiply
    295,228.80x = 442,900.80 × 126,748.80
  4. Step 4: Simplify right side
    295,228.80x = 56,137,144,919.04
  5. Step 5: Solve for x
    x = 56,137,144,919.04/295,228.80
  6. Step 6: Final answer
    x = 190,147.93

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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.