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Finding the Fourth Proportional to 245,434.88, 368,191.28 and 79,184

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Solution

The fourth proportional to 245,434.88, 368,191.28 and 79,184 is: 118,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,434.88 : 368,191.28 = 79,184 : x
  2. Step 2: Convert to fraction form
    245,434.88/368,191.28 = 79,184/x
  3. Step 3: Cross multiply
    245,434.88x = 368,191.28 × 79,184
  4. Step 4: Simplify right side
    245,434.88x = 29,154,858,315.52
  5. Step 5: Solve for x
    x = 29,154,858,315.52/245,434.88
  6. Step 6: Final answer
    x = 118,788.57

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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.