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Finding the Fourth Proportional to 300,009.96, 450,017.28 and 89,649.72

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Solution

The fourth proportional to 300,009.96, 450,017.28 and 89,649.72 is: 134,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,009.96 : 450,017.28 = 89,649.72 : x
  2. Step 2: Convert to fraction form
    300,009.96/450,017.28 = 89,649.72/x
  3. Step 3: Cross multiply
    300,009.96x = 450,017.28 × 89,649.72
  4. Step 4: Simplify right side
    300,009.96x = 40,343,923,147.16
  5. Step 5: Solve for x
    x = 40,343,923,147.16/300,009.96
  6. Step 6: Final answer
    x = 134,475.28

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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.