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Finding the Fourth Proportional to 242,666.70, 364,216.05 and 142,701.90

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Solution

The fourth proportional to 242,666.70, 364,216.05 and 142,701.90 is: 214,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,666.70 : 364,216.05 = 142,701.90 : x
  2. Step 2: Convert to fraction form
    242,666.70/364,216.05 = 142,701.90/x
  3. Step 3: Cross multiply
    242,666.70x = 364,216.05 × 142,701.90
  4. Step 4: Simplify right side
    242,666.70x = 51,974,322,345.50
  5. Step 5: Solve for x
    x = 51,974,322,345.50/242,666.70
  6. Step 6: Final answer
    x = 214,179.87

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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.