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Finding the Fourth Proportional to 300,026.28, 450,260.88 and 142,255.32

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Solution

The fourth proportional to 300,026.28, 450,260.88 and 142,255.32 is: 213,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,026.28 : 450,260.88 = 142,255.32 : x
  2. Step 2: Convert to fraction form
    300,026.28/450,260.88 = 142,255.32/x
  3. Step 3: Cross multiply
    300,026.28x = 450,260.88 × 142,255.32
  4. Step 4: Simplify right side
    300,026.28x = 64,052,005,567.88
  5. Step 5: Solve for x
    x = 64,052,005,567.88/300,026.28
  6. Step 6: Final answer
    x = 213,487.98

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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.