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Finding the Fourth Proportional to 362,660.81, 540,346.18 and 342,288.51

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Solution

The fourth proportional to 362,660.81, 540,346.18 and 342,288.51 is: 509,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,660.81 : 540,346.18 = 342,288.51 : x
  2. Step 2: Convert to fraction form
    362,660.81/540,346.18 = 342,288.51/x
  3. Step 3: Cross multiply
    362,660.81x = 540,346.18 × 342,288.51
  4. Step 4: Simplify right side
    362,660.81x = 184,954,287,124.95
  5. Step 5: Solve for x
    x = 184,954,287,124.95/362,660.81
  6. Step 6: Final answer
    x = 509,992.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.