Home / 320,080.07-480,191.54-120,402.11

Finding the Fourth Proportional to 320,080.07, 480,191.54 and 120,402.11

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Solution

The fourth proportional to 320,080.07, 480,191.54 and 120,402.11 is: 180,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,080.07 : 480,191.54 = 120,402.11 : x
  2. Step 2: Convert to fraction form
    320,080.07/480,191.54 = 120,402.11/x
  3. Step 3: Cross multiply
    320,080.07x = 480,191.54 × 120,402.11
  4. Step 4: Simplify right side
    320,080.07x = 57,816,071,617.18
  5. Step 5: Solve for x
    x = 57,816,071,617.18/320,080.07
  6. Step 6: Final answer
    x = 180,630.03

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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.