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Finding the Fourth Proportional to 242,585.20, 364,093.80 and 142,620.40

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Solution

The fourth proportional to 242,585.20, 364,093.80 and 142,620.40 is: 214,057.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,585.20 : 364,093.80 = 142,620.40 : x
  2. Step 2: Convert to fraction form
    242,585.20/364,093.80 = 142,620.40/x
  3. Step 3: Cross multiply
    242,585.20x = 364,093.80 × 142,620.40
  4. Step 4: Simplify right side
    242,585.20x = 51,927,203,393.52
  5. Step 5: Solve for x
    x = 51,927,203,393.52/242,585.20
  6. Step 6: Final answer
    x = 214,057.59

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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.