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Finding the Fourth Proportional to 331,227.60, 496,987.20 and 153,643.20

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Solution

The fourth proportional to 331,227.60, 496,987.20 and 153,643.20 is: 230,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,227.60 : 496,987.20 = 153,643.20 : x
  2. Step 2: Convert to fraction form
    331,227.60/496,987.20 = 153,643.20/x
  3. Step 3: Cross multiply
    331,227.60x = 496,987.20 × 153,643.20
  4. Step 4: Simplify right side
    331,227.60x = 76,358,703,767.04
  5. Step 5: Solve for x
    x = 76,358,703,767.04/331,227.60
  6. Step 6: Final answer
    x = 230,532.43

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1.5x scale

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.