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Finding the Fourth Proportional to 361,973.38, 540,020.94 and 342,377.86

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Solution

The fourth proportional to 361,973.38, 540,020.94 and 342,377.86 is: 510,786.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,973.38 : 540,020.94 = 342,377.86 : x
  2. Step 2: Convert to fraction form
    361,973.38/540,020.94 = 342,377.86/x
  3. Step 3: Cross multiply
    361,973.38x = 540,020.94 × 342,377.86
  4. Step 4: Simplify right side
    361,973.38x = 184,891,213,792.39
  5. Step 5: Solve for x
    x = 184,891,213,792.39/361,973.38
  6. Step 6: Final answer
    x = 510,786.77

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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.