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Finding the Fourth Proportional to 324,816.80, 487,225.20 and 158,928.80

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Solution

The fourth proportional to 324,816.80, 487,225.20 and 158,928.80 is: 238,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,816.80 : 487,225.20 = 158,928.80 : x
  2. Step 2: Convert to fraction form
    324,816.80/487,225.20 = 158,928.80/x
  3. Step 3: Cross multiply
    324,816.80x = 487,225.20 × 158,928.80
  4. Step 4: Simplify right side
    324,816.80x = 77,434,116,365.76
  5. Step 5: Solve for x
    x = 77,434,116,365.76/324,816.80
  6. Step 6: Final answer
    x = 238,393.20

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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.