Home / 270,416.02-405,505.67-128,301.82

Finding the Fourth Proportional to 270,416.02, 405,505.67 and 128,301.82

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Solution

The fourth proportional to 270,416.02, 405,505.67 and 128,301.82 is: 192,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,416.02 : 405,505.67 = 128,301.82 : x
  2. Step 2: Convert to fraction form
    270,416.02/405,505.67 = 128,301.82/x
  3. Step 3: Cross multiply
    270,416.02x = 405,505.67 × 128,301.82
  4. Step 4: Simplify right side
    270,416.02x = 52,027,116,467.86
  5. Step 5: Solve for x
    x = 52,027,116,467.86/270,416.02
  6. Step 6: Final answer
    x = 192,396.58

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1.5x scale

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.