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Finding the Fourth Proportional to 300,035.28, 450,274.38 and 142,264.32

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Solution

The fourth proportional to 300,035.28, 450,274.38 and 142,264.32 is: 213,501.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,035.28 : 450,274.38 = 142,264.32 : x
  2. Step 2: Convert to fraction form
    300,035.28/450,274.38 = 142,264.32/x
  3. Step 3: Cross multiply
    300,035.28x = 450,274.38 × 142,264.32
  4. Step 4: Simplify right side
    300,035.28x = 64,057,978,484.12
  5. Step 5: Solve for x
    x = 64,057,978,484.12/300,035.28
  6. Step 6: Final answer
    x = 213,501.49

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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.