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Finding the Fourth Proportional to 380,744.51, 571,188.85 and 153,057.76

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Solution

The fourth proportional to 380,744.51, 571,188.85 and 153,057.76 is: 229,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,744.51 : 571,188.85 = 153,057.76 : x
  2. Step 2: Convert to fraction form
    380,744.51/571,188.85 = 153,057.76/x
  3. Step 3: Cross multiply
    380,744.51x = 571,188.85 × 153,057.76
  4. Step 4: Simplify right side
    380,744.51x = 87,424,884,107.36
  5. Step 5: Solve for x
    x = 87,424,884,107.36/380,744.51
  6. Step 6: Final answer
    x = 229,615.62

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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.