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Finding the Fourth Proportional to 379,353.53, 523,501.73 and 207,267.81

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Solution

The fourth proportional to 379,353.53, 523,501.73 and 207,267.81 is: 286,026.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,353.53 : 523,501.73 = 207,267.81 : x
  2. Step 2: Convert to fraction form
    379,353.53/523,501.73 = 207,267.81/x
  3. Step 3: Cross multiply
    379,353.53x = 523,501.73 × 207,267.81
  4. Step 4: Simplify right side
    379,353.53x = 108,505,058,996.67
  5. Step 5: Solve for x
    x = 108,505,058,996.67/379,353.53
  6. Step 6: Final answer
    x = 286,026.23

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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.