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Finding the Fourth Proportional to 300,027.78, 450,263.13 and 142,256.82

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Solution

The fourth proportional to 300,027.78, 450,263.13 and 142,256.82 is: 213,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,027.78 : 450,263.13 = 142,256.82 : x
  2. Step 2: Convert to fraction form
    300,027.78/450,263.13 = 142,256.82/x
  3. Step 3: Cross multiply
    300,027.78x = 450,263.13 × 142,256.82
  4. Step 4: Simplify right side
    300,027.78x = 64,053,001,037.05
  5. Step 5: Solve for x
    x = 64,053,001,037.05/300,027.78
  6. Step 6: Final answer
    x = 213,490.23

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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.