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Finding the Fourth Proportional to 242,574.60, 363,861.90 and 219,246.60

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Solution

The fourth proportional to 242,574.60, 363,861.90 and 219,246.60 is: 328,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,574.60 : 363,861.90 = 219,246.60 : x
  2. Step 2: Convert to fraction form
    242,574.60/363,861.90 = 219,246.60/x
  3. Step 3: Cross multiply
    242,574.60x = 363,861.90 × 219,246.60
  4. Step 4: Simplify right side
    242,574.60x = 79,775,484,444.54
  5. Step 5: Solve for x
    x = 79,775,484,444.54/242,574.60
  6. Step 6: Final answer
    x = 328,869.90

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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.