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Finding the Fourth Proportional to 245,059.60, 367,589.40 and 87,293.20

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Solution

The fourth proportional to 245,059.60, 367,589.40 and 87,293.20 is: 130,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,059.60 : 367,589.40 = 87,293.20 : x
  2. Step 2: Convert to fraction form
    245,059.60/367,589.40 = 87,293.20/x
  3. Step 3: Cross multiply
    245,059.60x = 367,589.40 × 87,293.20
  4. Step 4: Simplify right side
    245,059.60x = 32,088,055,012.08
  5. Step 5: Solve for x
    x = 32,088,055,012.08/245,059.60
  6. Step 6: Final answer
    x = 130,939.80

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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.