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Finding the Fourth Proportional to 288,069.15, 431,859.73 and 119,484.25

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Solution

The fourth proportional to 288,069.15, 431,859.73 and 119,484.25 is: 179,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,069.15 : 431,859.73 = 119,484.25 : x
  2. Step 2: Convert to fraction form
    288,069.15/431,859.73 = 119,484.25/x
  3. Step 3: Cross multiply
    288,069.15x = 431,859.73 × 119,484.25
  4. Step 4: Simplify right side
    288,069.15x = 51,600,436,275.78
  5. Step 5: Solve for x
    x = 51,600,436,275.78/288,069.15
  6. Step 6: Final answer
    x = 179,125.17

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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.