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Finding the Fourth Proportional to 300,415.76, 450,778.95 and 132,054.29

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Solution

The fourth proportional to 300,415.76, 450,778.95 and 132,054.29 is: 198,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,415.76 : 450,778.95 = 132,054.29 : x
  2. Step 2: Convert to fraction form
    300,415.76/450,778.95 = 132,054.29/x
  3. Step 3: Cross multiply
    300,415.76x = 450,778.95 × 132,054.29
  4. Step 4: Simplify right side
    300,415.76x = 59,527,291,935.30
  5. Step 5: Solve for x
    x = 59,527,291,935.30/300,415.76
  6. Step 6: Final answer
    x = 198,149.70

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1.5x scale

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.