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Finding the Fourth Proportional to 351,998.57, 486,158.94 and 238,624.49

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Solution

The fourth proportional to 351,998.57, 486,158.94 and 238,624.49 is: 329,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,998.57 : 486,158.94 = 238,624.49 : x
  2. Step 2: Convert to fraction form
    351,998.57/486,158.94 = 238,624.49/x
  3. Step 3: Cross multiply
    351,998.57x = 486,158.94 × 238,624.49
  4. Step 4: Simplify right side
    351,998.57x = 116,009,426,685.65
  5. Step 5: Solve for x
    x = 116,009,426,685.65/351,998.57
  6. Step 6: Final answer
    x = 329,573.58

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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.