Home / 251,516.53-347,085.57-138,339.28

Finding the Fourth Proportional to 251,516.53, 347,085.57 and 138,339.28

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Solution

The fourth proportional to 251,516.53, 347,085.57 and 138,339.28 is: 190,904.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,516.53 : 347,085.57 = 138,339.28 : x
  2. Step 2: Convert to fraction form
    251,516.53/347,085.57 = 138,339.28/x
  3. Step 3: Cross multiply
    251,516.53x = 347,085.57 × 138,339.28
  4. Step 4: Simplify right side
    251,516.53x = 48,015,567,852.19
  5. Step 5: Solve for x
    x = 48,015,567,852.19/251,516.53
  6. Step 6: Final answer
    x = 190,904.22

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1.5x scale

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.