Home / 245,631.60-368,447.40-87,865.20

Finding the Fourth Proportional to 245,631.60, 368,447.40 and 87,865.20

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Solution

The fourth proportional to 245,631.60, 368,447.40 and 87,865.20 is: 131,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,631.60 : 368,447.40 = 87,865.20 : x
  2. Step 2: Convert to fraction form
    245,631.60/368,447.40 = 87,865.20/x
  3. Step 3: Cross multiply
    245,631.60x = 368,447.40 × 87,865.20
  4. Step 4: Simplify right side
    245,631.60x = 32,373,704,490.48
  5. Step 5: Solve for x
    x = 32,373,704,490.48/245,631.60
  6. Step 6: Final answer
    x = 131,797.80

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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.