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Finding the Fourth Proportional to 250,818.55, 376,226.81 and 90,857.06

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Solution

The fourth proportional to 250,818.55, 376,226.81 and 90,857.06 is: 136,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,818.55 : 376,226.81 = 90,857.06 : x
  2. Step 2: Convert to fraction form
    250,818.55/376,226.81 = 90,857.06/x
  3. Step 3: Cross multiply
    250,818.55x = 376,226.81 × 90,857.06
  4. Step 4: Simplify right side
    250,818.55x = 34,182,861,395.49
  5. Step 5: Solve for x
    x = 34,182,861,395.49/250,818.55
  6. Step 6: Final answer
    x = 136,285.22

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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.