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Finding the Fourth Proportional to 300,534.53, 450,798.03 and 120,699.59

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Solution

The fourth proportional to 300,534.53, 450,798.03 and 120,699.59 is: 181,047.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,534.53 : 450,798.03 = 120,699.59 : x
  2. Step 2: Convert to fraction form
    300,534.53/450,798.03 = 120,699.59/x
  3. Step 3: Cross multiply
    300,534.53x = 450,798.03 × 120,699.59
  4. Step 4: Simplify right side
    300,534.53x = 54,411,135,139.82
  5. Step 5: Solve for x
    x = 54,411,135,139.82/300,534.53
  6. Step 6: Final answer
    x = 181,047.87

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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.