Home / 331,528.72-497,296.55-265,389.28

Finding the Fourth Proportional to 331,528.72, 497,296.55 and 265,389.28

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Solution

The fourth proportional to 331,528.72, 497,296.55 and 265,389.28 is: 398,086.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,528.72 : 497,296.55 = 265,389.28 : x
  2. Step 2: Convert to fraction form
    331,528.72/497,296.55 = 265,389.28/x
  3. Step 3: Cross multiply
    331,528.72x = 497,296.55 × 265,389.28
  4. Step 4: Simplify right side
    331,528.72x = 131,977,170,780.80
  5. Step 5: Solve for x
    x = 131,977,170,780.80/331,528.72
  6. Step 6: Final answer
    x = 398,086.69

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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.