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Finding the Fourth Proportional to 288,303.42, 397,872.09 and 159,259.89

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Solution

The fourth proportional to 288,303.42, 397,872.09 and 159,259.89 is: 219,786.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,303.42 : 397,872.09 = 159,259.89 : x
  2. Step 2: Convert to fraction form
    288,303.42/397,872.09 = 159,259.89/x
  3. Step 3: Cross multiply
    288,303.42x = 397,872.09 × 159,259.89
  4. Step 4: Simplify right side
    288,303.42x = 63,365,065,287.47
  5. Step 5: Solve for x
    x = 63,365,065,287.47/288,303.42
  6. Step 6: Final answer
    x = 219,786.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.