Home / 331,007.40-496,122.30-153,138.72

Finding the Fourth Proportional to 331,007.40, 496,122.30 and 153,138.72

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Solution

The fourth proportional to 331,007.40, 496,122.30 and 153,138.72 is: 229,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,007.40 : 496,122.30 = 153,138.72 : x
  2. Step 2: Convert to fraction form
    331,007.40/496,122.30 = 153,138.72/x
  3. Step 3: Cross multiply
    331,007.40x = 496,122.30 × 153,138.72
  4. Step 4: Simplify right side
    331,007.40x = 75,975,533,985.46
  5. Step 5: Solve for x
    x = 75,975,533,985.46/331,007.40
  6. Step 6: Final answer
    x = 229,528.20

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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.