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Finding the Fourth Proportional to 347,220.96, 520,873.11 and 122,535

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Solution

The fourth proportional to 347,220.96, 520,873.11 and 122,535 is: 183,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,220.96 : 520,873.11 = 122,535 : x
  2. Step 2: Convert to fraction form
    347,220.96/520,873.11 = 122,535/x
  3. Step 3: Cross multiply
    347,220.96x = 520,873.11 × 122,535
  4. Step 4: Simplify right side
    347,220.96x = 63,825,186,533.85
  5. Step 5: Solve for x
    x = 63,825,186,533.85/347,220.96
  6. Step 6: Final answer
    x = 183,817.21

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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.