Home / 407,480.02-611,081.62-141,178.39

Finding the Fourth Proportional to 407,480.02, 611,081.62 and 141,178.39

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Solution

The fourth proportional to 407,480.02, 611,081.62 and 141,178.39 is: 211,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,480.02 : 611,081.62 = 141,178.39 : x
  2. Step 2: Convert to fraction form
    407,480.02/611,081.62 = 141,178.39/x
  3. Step 3: Cross multiply
    407,480.02x = 611,081.62 × 141,178.39
  4. Step 4: Simplify right side
    407,480.02x = 86,271,520,826.88
  5. Step 5: Solve for x
    x = 86,271,520,826.88/407,480.02
  6. Step 6: Final answer
    x = 211,719.64

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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.