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Finding the Fourth Proportional to 300,486.54, 450,656.01 and 100,802.46

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Solution

The fourth proportional to 300,486.54, 450,656.01 and 100,802.46 is: 151,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,486.54 : 450,656.01 = 100,802.46 : x
  2. Step 2: Convert to fraction form
    300,486.54/450,656.01 = 100,802.46/x
  3. Step 3: Cross multiply
    300,486.54x = 450,656.01 × 100,802.46
  4. Step 4: Simplify right side
    300,486.54x = 45,427,234,421.78
  5. Step 5: Solve for x
    x = 45,427,234,421.78/300,486.54
  6. Step 6: Final answer
    x = 151,178.93

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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.