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Finding the Fourth Proportional to 288,349.47, 397,933.53 and 159,294.60

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Solution

The fourth proportional to 288,349.47, 397,933.53 and 159,294.60 is: 219,832.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,349.47 : 397,933.53 = 159,294.60 : x
  2. Step 2: Convert to fraction form
    288,349.47/397,933.53 = 159,294.60/x
  3. Step 3: Cross multiply
    288,349.47x = 397,933.53 × 159,294.60
  4. Step 4: Simplify right side
    288,349.47x = 63,388,662,487.94
  5. Step 5: Solve for x
    x = 63,388,662,487.94/288,349.47
  6. Step 6: Final answer
    x = 219,832.77

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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.