Home / 251,921.26-347,625.63-155,109.76

Finding the Fourth Proportional to 251,921.26, 347,625.63 and 155,109.76

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Solution

The fourth proportional to 251,921.26, 347,625.63 and 155,109.76 is: 214,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,921.26 : 347,625.63 = 155,109.76 : x
  2. Step 2: Convert to fraction form
    251,921.26/347,625.63 = 155,109.76/x
  3. Step 3: Cross multiply
    251,921.26x = 347,625.63 × 155,109.76
  4. Step 4: Simplify right side
    251,921.26x = 53,920,128,039.15
  5. Step 5: Solve for x
    x = 53,920,128,039.15/251,921.26
  6. Step 6: Final answer
    x = 214,035.64

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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.