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Finding the Fourth Proportional to 372,855.74, 514,844.73 and 303,956.30

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Solution

The fourth proportional to 372,855.74, 514,844.73 and 303,956.30 is: 419,707.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,855.74 : 514,844.73 = 303,956.30 : x
  2. Step 2: Convert to fraction form
    372,855.74/514,844.73 = 303,956.30/x
  3. Step 3: Cross multiply
    372,855.74x = 514,844.73 × 303,956.30
  4. Step 4: Simplify right side
    372,855.74x = 156,490,299,205.30
  5. Step 5: Solve for x
    x = 156,490,299,205.30/372,855.74
  6. Step 6: Final answer
    x = 419,707.36

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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.