Home / 251,683.28-347,322.69-138,506.03

Finding the Fourth Proportional to 251,683.28, 347,322.69 and 138,506.03

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Solution

The fourth proportional to 251,683.28, 347,322.69 and 138,506.03 is: 191,138.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,683.28 : 347,322.69 = 138,506.03 : x
  2. Step 2: Convert to fraction form
    251,683.28/347,322.69 = 138,506.03/x
  3. Step 3: Cross multiply
    251,683.28x = 347,322.69 × 138,506.03
  4. Step 4: Simplify right side
    251,683.28x = 48,106,286,920.82
  5. Step 5: Solve for x
    x = 48,106,286,920.82/251,683.28
  6. Step 6: Final answer
    x = 191,138.19

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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.