Home / 209,439.24-314,039.82-142,959.84

Finding the Fourth Proportional to 209,439.24, 314,039.82 and 142,959.84

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Solution

The fourth proportional to 209,439.24, 314,039.82 and 142,959.84 is: 214,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,439.24 : 314,039.82 = 142,959.84 : x
  2. Step 2: Convert to fraction form
    209,439.24/314,039.82 = 142,959.84/x
  3. Step 3: Cross multiply
    209,439.24x = 314,039.82 × 142,959.84
  4. Step 4: Simplify right side
    209,439.24x = 44,895,082,420.83
  5. Step 5: Solve for x
    x = 44,895,082,420.83/209,439.24
  6. Step 6: Final answer
    x = 214,358.51

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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.