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Finding the Fourth Proportional to 300,416.76, 450,780.45 and 132,055.29

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Solution

The fourth proportional to 300,416.76, 450,780.45 and 132,055.29 is: 198,151.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,416.76 : 450,780.45 = 132,055.29 : x
  2. Step 2: Convert to fraction form
    300,416.76/450,780.45 = 132,055.29/x
  3. Step 3: Cross multiply
    300,416.76x = 450,780.45 × 132,055.29
  4. Step 4: Simplify right side
    300,416.76x = 59,527,943,051.08
  5. Step 5: Solve for x
    x = 59,527,943,051.08/300,416.76
  6. Step 6: Final answer
    x = 198,151.21

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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.