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Finding the Fourth Proportional to 320,064.68, 480,121.53 and 95,407.94

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Solution

The fourth proportional to 320,064.68, 480,121.53 and 95,407.94 is: 143,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,064.68 : 480,121.53 = 95,407.94 : x
  2. Step 2: Convert to fraction form
    320,064.68/480,121.53 = 95,407.94/x
  3. Step 3: Cross multiply
    320,064.68x = 480,121.53 × 95,407.94
  4. Step 4: Simplify right side
    320,064.68x = 45,807,406,969.47
  5. Step 5: Solve for x
    x = 45,807,406,969.47/320,064.68
  6. Step 6: Final answer
    x = 143,119.22

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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.