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Finding the Fourth Proportional to 307,572.32, 461,200.44 and 139,001.34

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Solution

The fourth proportional to 307,572.32, 461,200.44 and 139,001.34 is: 208,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,572.32 : 461,200.44 = 139,001.34 : x
  2. Step 2: Convert to fraction form
    307,572.32/461,200.44 = 139,001.34/x
  3. Step 3: Cross multiply
    307,572.32x = 461,200.44 × 139,001.34
  4. Step 4: Simplify right side
    307,572.32x = 64,107,479,168.59
  5. Step 5: Solve for x
    x = 64,107,479,168.59/307,572.32
  6. Step 6: Final answer
    x = 208,430.59

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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.