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Finding the Fourth Proportional to 300,030.40, 450,110.40 and 89,689.60

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Solution

The fourth proportional to 300,030.40, 450,110.40 and 89,689.60 is: 134,553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,030.40 : 450,110.40 = 89,689.60 : x
  2. Step 2: Convert to fraction form
    300,030.40/450,110.40 = 89,689.60/x
  3. Step 3: Cross multiply
    300,030.40x = 450,110.40 × 89,689.60
  4. Step 4: Simplify right side
    300,030.40x = 40,370,221,731.84
  5. Step 5: Solve for x
    x = 40,370,221,731.84/300,030.40
  6. Step 6: Final answer
    x = 134,553.77

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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.