Home / 251,960.11-347,705.43-137,238.40

Finding the Fourth Proportional to 251,960.11, 347,705.43 and 137,238.40

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Solution

The fourth proportional to 251,960.11, 347,705.43 and 137,238.40 is: 189,389.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,960.11 : 347,705.43 = 137,238.40 : x
  2. Step 2: Convert to fraction form
    251,960.11/347,705.43 = 137,238.40/x
  3. Step 3: Cross multiply
    251,960.11x = 347,705.43 × 137,238.40
  4. Step 4: Simplify right side
    251,960.11x = 47,718,535,752.16
  5. Step 5: Solve for x
    x = 47,718,535,752.16/251,960.11
  6. Step 6: Final answer
    x = 189,389.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.