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Finding the Fourth Proportional to 239,603.19, 359,366.65 and 79,665.82

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Solution

The fourth proportional to 239,603.19, 359,366.65 and 79,665.82 is: 119,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,603.19 : 359,366.65 = 79,665.82 : x
  2. Step 2: Convert to fraction form
    239,603.19/359,366.65 = 79,665.82/x
  3. Step 3: Cross multiply
    239,603.19x = 359,366.65 × 79,665.82
  4. Step 4: Simplify right side
    239,603.19x = 28,629,238,852.90
  5. Step 5: Solve for x
    x = 28,629,238,852.90/239,603.19
  6. Step 6: Final answer
    x = 119,486.05

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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.