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Finding the Fourth Proportional to 245,369.19, 368,053.88 and 76,902.59

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Solution

The fourth proportional to 245,369.19, 368,053.88 and 76,902.59 is: 115,353.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,369.19 : 368,053.88 = 76,902.59 : x
  2. Step 2: Convert to fraction form
    245,369.19/368,053.88 = 76,902.59/x
  3. Step 3: Cross multiply
    245,369.19x = 368,053.88 × 76,902.59
  4. Step 4: Simplify right side
    245,369.19x = 28,304,296,247.04
  5. Step 5: Solve for x
    x = 28,304,296,247.04/245,369.19
  6. Step 6: Final answer
    x = 115,353.91

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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.