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Finding the Fourth Proportional to 372,457.67, 514,003.25 and 211,319.51

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Solution

The fourth proportional to 372,457.67, 514,003.25 and 211,319.51 is: 291,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,457.67 : 514,003.25 = 211,319.51 : x
  2. Step 2: Convert to fraction form
    372,457.67/514,003.25 = 211,319.51/x
  3. Step 3: Cross multiply
    372,457.67x = 514,003.25 × 211,319.51
  4. Step 4: Simplify right side
    372,457.67x = 108,618,914,928.41
  5. Step 5: Solve for x
    x = 108,618,914,928.41/372,457.67
  6. Step 6: Final answer
    x = 291,627.54

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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.