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Finding the Fourth Proportional to 251,295.75, 346,790.82 and 136,574.40

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Solution

The fourth proportional to 251,295.75, 346,790.82 and 136,574.40 is: 188,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,295.75 : 346,790.82 = 136,574.40 : x
  2. Step 2: Convert to fraction form
    251,295.75/346,790.82 = 136,574.40/x
  3. Step 3: Cross multiply
    251,295.75x = 346,790.82 × 136,574.40
  4. Step 4: Simplify right side
    251,295.75x = 47,362,748,167.01
  5. Step 5: Solve for x
    x = 47,362,748,167.01/251,295.75
  6. Step 6: Final answer
    x = 188,474.13

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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.