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Finding the Fourth Proportional to 305,798.48, 421,800.84 and 192,526.16

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Solution

The fourth proportional to 305,798.48, 421,800.84 and 192,526.16 is: 265,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,798.48 : 421,800.84 = 192,526.16 : x
  2. Step 2: Convert to fraction form
    305,798.48/421,800.84 = 192,526.16/x
  3. Step 3: Cross multiply
    305,798.48x = 421,800.84 × 192,526.16
  4. Step 4: Simplify right side
    305,798.48x = 81,207,696,009.97
  5. Step 5: Solve for x
    x = 81,207,696,009.97/305,798.48
  6. Step 6: Final answer
    x = 265,559.51

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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.