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Finding the Fourth Proportional to 358,704.93, 491,427.90 and 345,252.45

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Solution

The fourth proportional to 358,704.93, 491,427.90 and 345,252.45 is: 472,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,704.93 : 491,427.90 = 345,252.45 : x
  2. Step 2: Convert to fraction form
    358,704.93/491,427.90 = 345,252.45/x
  3. Step 3: Cross multiply
    358,704.93x = 491,427.90 × 345,252.45
  4. Step 4: Simplify right side
    358,704.93x = 169,666,686,473.36
  5. Step 5: Solve for x
    x = 169,666,686,473.36/358,704.93
  6. Step 6: Final answer
    x = 472,997.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.