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Finding the Fourth Proportional to 450,518.98, 675,678.63 and 134,934.34

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Solution

The fourth proportional to 450,518.98, 675,678.63 and 134,934.34 is: 202,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,518.98 : 675,678.63 = 134,934.34 : x
  2. Step 2: Convert to fraction form
    450,518.98/675,678.63 = 134,934.34/x
  3. Step 3: Cross multiply
    450,518.98x = 675,678.63 × 134,934.34
  4. Step 4: Simplify right side
    450,518.98x = 91,172,249,991.15
  5. Step 5: Solve for x
    x = 91,172,249,991.15/450,518.98
  6. Step 6: Final answer
    x = 202,371.61

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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.