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Finding the Fourth Proportional to 250,755.36, 346,036.37 and 138,864.90

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Solution

The fourth proportional to 250,755.36, 346,036.37 and 138,864.90 is: 191,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,755.36 : 346,036.37 = 138,864.90 : x
  2. Step 2: Convert to fraction form
    250,755.36/346,036.37 = 138,864.90/x
  3. Step 3: Cross multiply
    250,755.36x = 346,036.37 × 138,864.90
  4. Step 4: Simplify right side
    250,755.36x = 48,052,305,916.41
  5. Step 5: Solve for x
    x = 48,052,305,916.41/250,755.36
  6. Step 6: Final answer
    x = 191,630.22

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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.