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Finding the Fourth Proportional to 223,762.87, 308,800.33 and 121,792.03

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Solution

The fourth proportional to 223,762.87, 308,800.33 and 121,792.03 is: 168,077.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,762.87 : 308,800.33 = 121,792.03 : x
  2. Step 2: Convert to fraction form
    223,762.87/308,800.33 = 121,792.03/x
  3. Step 3: Cross multiply
    223,762.87x = 308,800.33 × 121,792.03
  4. Step 4: Simplify right side
    223,762.87x = 37,609,417,978.89
  5. Step 5: Solve for x
    x = 37,609,417,978.89/223,762.87
  6. Step 6: Final answer
    x = 168,077.12

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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.