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Finding the Fourth Proportional to 512,944.90, 769,501.59 and 157,958.98

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Solution

The fourth proportional to 512,944.90, 769,501.59 and 157,958.98 is: 236,964.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,944.90 : 769,501.59 = 157,958.98 : x
  2. Step 2: Convert to fraction form
    512,944.90/769,501.59 = 157,958.98/x
  3. Step 3: Cross multiply
    512,944.90x = 769,501.59 × 157,958.98
  4. Step 4: Simplify right side
    512,944.90x = 121,549,686,264.78
  5. Step 5: Solve for x
    x = 121,549,686,264.78/512,944.90
  6. Step 6: Final answer
    x = 236,964.41

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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.