Home / 305,943.60-458,757.81-137,319.36

Finding the Fourth Proportional to 305,943.60, 458,757.81 and 137,319.36

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Solution

The fourth proportional to 305,943.60, 458,757.81 and 137,319.36 is: 205,908.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,943.60 : 458,757.81 = 137,319.36 : x
  2. Step 2: Convert to fraction form
    305,943.60/458,757.81 = 137,319.36/x
  3. Step 3: Cross multiply
    305,943.60x = 458,757.81 × 137,319.36
  4. Step 4: Simplify right side
    305,943.60x = 62,996,328,864.20
  5. Step 5: Solve for x
    x = 62,996,328,864.20/305,943.60
  6. Step 6: Final answer
    x = 205,908.31

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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.