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Finding the Fourth Proportional to 145,309.64, 217,958.54 and 50,561.51

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Solution

The fourth proportional to 145,309.64, 217,958.54 and 50,561.51 is: 75,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,309.64 : 217,958.54 = 50,561.51 : x
  2. Step 2: Convert to fraction form
    145,309.64/217,958.54 = 50,561.51/x
  3. Step 3: Cross multiply
    145,309.64x = 217,958.54 × 50,561.51
  4. Step 4: Simplify right side
    145,309.64x = 11,020,311,557.20
  5. Step 5: Solve for x
    x = 11,020,311,557.20/145,309.64
  6. Step 6: Final answer
    x = 75,840.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.