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Finding the Fourth Proportional to 320,065.37, 480,122.56 and 95,408.63

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Solution

The fourth proportional to 320,065.37, 480,122.56 and 95,408.63 is: 143,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,065.37 : 480,122.56 = 95,408.63 : x
  2. Step 2: Convert to fraction form
    320,065.37/480,122.56 = 95,408.63/x
  3. Step 3: Cross multiply
    320,065.37x = 480,122.56 × 95,408.63
  4. Step 4: Simplify right side
    320,065.37x = 45,807,835,681.69
  5. Step 5: Solve for x
    x = 45,807,835,681.69/320,065.37
  6. Step 6: Final answer
    x = 143,120.25

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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.