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Finding the Fourth Proportional to 257,773.79, 355,728.02 and 143,052.51

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Solution

The fourth proportional to 257,773.79, 355,728.02 and 143,052.51 is: 197,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,773.79 : 355,728.02 = 143,052.51 : x
  2. Step 2: Convert to fraction form
    257,773.79/355,728.02 = 143,052.51/x
  3. Step 3: Cross multiply
    257,773.79x = 355,728.02 × 143,052.51
  4. Step 4: Simplify right side
    257,773.79x = 50,887,786,550.33
  5. Step 5: Solve for x
    x = 50,887,786,550.33/257,773.79
  6. Step 6: Final answer
    x = 197,412.57

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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.