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Finding the Fourth Proportional to 307,989.04, 461,903.30 and 130,404.64

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Solution

The fourth proportional to 307,989.04, 461,903.30 and 130,404.64 is: 195,572.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,989.04 : 461,903.30 = 130,404.64 : x
  2. Step 2: Convert to fraction form
    307,989.04/461,903.30 = 130,404.64/x
  3. Step 3: Cross multiply
    307,989.04x = 461,903.30 × 130,404.64
  4. Step 4: Simplify right side
    307,989.04x = 60,234,333,551.31
  5. Step 5: Solve for x
    x = 60,234,333,551.31/307,989.04
  6. Step 6: Final answer
    x = 195,572.98

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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.