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Finding the Fourth Proportional to 580,288.56, 870,152.86 and 243,238.70

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Solution

The fourth proportional to 580,288.56, 870,152.86 and 243,238.70 is: 364,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,288.56 : 870,152.86 = 243,238.70 : x
  2. Step 2: Convert to fraction form
    580,288.56/870,152.86 = 243,238.70/x
  3. Step 3: Cross multiply
    580,288.56x = 870,152.86 × 243,238.70
  4. Step 4: Simplify right side
    580,288.56x = 211,654,850,467.68
  5. Step 5: Solve for x
    x = 211,654,850,467.68/580,288.56
  6. Step 6: Final answer
    x = 364,740.69

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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.