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Finding the Fourth Proportional to 245,077.68, 367,690.35 and 87,285.60

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Solution

The fourth proportional to 245,077.68, 367,690.35 and 87,285.60 is: 130,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,077.68 : 367,690.35 = 87,285.60 : x
  2. Step 2: Convert to fraction form
    245,077.68/367,690.35 = 87,285.60/x
  3. Step 3: Cross multiply
    245,077.68x = 367,690.35 × 87,285.60
  4. Step 4: Simplify right side
    245,077.68x = 32,094,072,813.96
  5. Step 5: Solve for x
    x = 32,094,072,813.96/245,077.68
  6. Step 6: Final answer
    x = 130,954.69

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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.