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Finding the Fourth Proportional to 237,857.78, 328,243.57 and 130,429.55

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Solution

The fourth proportional to 237,857.78, 328,243.57 and 130,429.55 is: 179,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,857.78 : 328,243.57 = 130,429.55 : x
  2. Step 2: Convert to fraction form
    237,857.78/328,243.57 = 130,429.55/x
  3. Step 3: Cross multiply
    237,857.78x = 328,243.57 × 130,429.55
  4. Step 4: Simplify right side
    237,857.78x = 42,812,659,158.20
  5. Step 5: Solve for x
    x = 42,812,659,158.20/237,857.78
  6. Step 6: Final answer
    x = 179,992.68

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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.