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Finding the Fourth Proportional to 366,953.78, 550,570.80 and 142,471.86

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Solution

The fourth proportional to 366,953.78, 550,570.80 and 142,471.86 is: 213,762.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,953.78 : 550,570.80 = 142,471.86 : x
  2. Step 2: Convert to fraction form
    366,953.78/550,570.80 = 142,471.86/x
  3. Step 3: Cross multiply
    366,953.78x = 550,570.80 × 142,471.86
  4. Step 4: Simplify right side
    366,953.78x = 78,440,845,236.32
  5. Step 5: Solve for x
    x = 78,440,845,236.32/366,953.78
  6. Step 6: Final answer
    x = 213,762.19

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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.