Home / 245,021.20-367,445.40-87,254.80

Finding the Fourth Proportional to 245,021.20, 367,445.40 and 87,254.80

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Solution

The fourth proportional to 245,021.20, 367,445.40 and 87,254.80 is: 130,851.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,021.20 : 367,445.40 = 87,254.80 : x
  2. Step 2: Convert to fraction form
    245,021.20/367,445.40 = 87,254.80/x
  3. Step 3: Cross multiply
    245,021.20x = 367,445.40 × 87,254.80
  4. Step 4: Simplify right side
    245,021.20x = 32,061,374,887.92
  5. Step 5: Solve for x
    x = 32,061,374,887.92/245,021.20
  6. Step 6: Final answer
    x = 130,851.43

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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.