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Finding the Fourth Proportional to 251,300.04, 346,794.12 and 136,578.66

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Solution

The fourth proportional to 251,300.04, 346,794.12 and 136,578.66 is: 188,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,300.04 : 346,794.12 = 136,578.66 : x
  2. Step 2: Convert to fraction form
    251,300.04/346,794.12 = 136,578.66/x
  3. Step 3: Cross multiply
    251,300.04x = 346,794.12 × 136,578.66
  4. Step 4: Simplify right side
    251,300.04x = 47,364,676,205.48
  5. Step 5: Solve for x
    x = 47,364,676,205.48/251,300.04
  6. Step 6: Final answer
    x = 188,478.59

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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.