Home / 305,395.18-458,245.54-137,035.86

Finding the Fourth Proportional to 305,395.18, 458,245.54 and 137,035.86

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Solution

The fourth proportional to 305,395.18, 458,245.54 and 137,035.86 is: 205,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,395.18 : 458,245.54 = 137,035.86 : x
  2. Step 2: Convert to fraction form
    305,395.18/458,245.54 = 137,035.86/x
  3. Step 3: Cross multiply
    305,395.18x = 458,245.54 × 137,035.86
  4. Step 4: Simplify right side
    305,395.18x = 62,796,071,665.06
  5. Step 5: Solve for x
    x = 62,796,071,665.06/305,395.18
  6. Step 6: Final answer
    x = 205,622.34

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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.