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Finding the Fourth Proportional to 250,462.12, 345,673.16 and 154,999.56

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Solution

The fourth proportional to 250,462.12, 345,673.16 and 154,999.56 is: 213,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,462.12 : 345,673.16 = 154,999.56 : x
  2. Step 2: Convert to fraction form
    250,462.12/345,673.16 = 154,999.56/x
  3. Step 3: Cross multiply
    250,462.12x = 345,673.16 × 154,999.56
  4. Step 4: Simplify right side
    250,462.12x = 53,579,187,703.81
  5. Step 5: Solve for x
    x = 53,579,187,703.81/250,462.12
  6. Step 6: Final answer
    x = 213,921.32

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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.