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Finding the Fourth Proportional to 245,649.60, 368,454.96 and 87,861.60

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Solution

The fourth proportional to 245,649.60, 368,454.96 and 87,861.60 is: 131,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,649.60 : 368,454.96 = 87,861.60 : x
  2. Step 2: Convert to fraction form
    245,649.60/368,454.96 = 87,861.60/x
  3. Step 3: Cross multiply
    245,649.60x = 368,454.96 × 87,861.60
  4. Step 4: Simplify right side
    245,649.60x = 32,373,042,313.54
  5. Step 5: Solve for x
    x = 32,373,042,313.54/245,649.60
  6. Step 6: Final answer
    x = 131,785.45

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1.5x scale

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.