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Finding the Fourth Proportional to 245,108.72, 367,697.64 and 87,290.48

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Solution

The fourth proportional to 245,108.72, 367,697.64 and 87,290.48 is: 130,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,108.72 : 367,697.64 = 87,290.48 : x
  2. Step 2: Convert to fraction form
    245,108.72/367,697.64 = 87,290.48/x
  3. Step 3: Cross multiply
    245,108.72x = 367,697.64 × 87,290.48
  4. Step 4: Simplify right side
    245,108.72x = 32,096,503,490.47
  5. Step 5: Solve for x
    x = 32,096,503,490.47/245,108.72
  6. Step 6: Final answer
    x = 130,948.03

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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.