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Finding the Fourth Proportional to 368,144.92, 507,917.86 and 300,044.88

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Solution

The fourth proportional to 368,144.92, 507,917.86 and 300,044.88 is: 413,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,144.92 : 507,917.86 = 300,044.88 : x
  2. Step 2: Convert to fraction form
    368,144.92/507,917.86 = 300,044.88/x
  3. Step 3: Cross multiply
    368,144.92x = 507,917.86 × 300,044.88
  4. Step 4: Simplify right side
    368,144.92x = 152,398,153,353.56
  5. Step 5: Solve for x
    x = 152,398,153,353.56/368,144.92
  6. Step 6: Final answer
    x = 413,962.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.