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Finding the Fourth Proportional to 251,007, 346,392.09 and 137,832.18

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Solution

The fourth proportional to 251,007, 346,392.09 and 137,832.18 is: 190,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,007 : 346,392.09 = 137,832.18 : x
  2. Step 2: Convert to fraction form
    251,007/346,392.09 = 137,832.18/x
  3. Step 3: Cross multiply
    251,007x = 346,392.09 × 137,832.18
  4. Step 4: Simplify right side
    251,007x = 47,743,976,899.46
  5. Step 5: Solve for x
    x = 47,743,976,899.46/251,007
  6. Step 6: Final answer
    x = 190,209.74

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1.5x scale

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.