Home / 265,987.20-367,062.72-145,129.04

Finding the Fourth Proportional to 265,987.20, 367,062.72 and 145,129.04

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Solution

The fourth proportional to 265,987.20, 367,062.72 and 145,129.04 is: 200,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,987.20 : 367,062.72 = 145,129.04 : x
  2. Step 2: Convert to fraction form
    265,987.20/367,062.72 = 145,129.04/x
  3. Step 3: Cross multiply
    265,987.20x = 367,062.72 × 145,129.04
  4. Step 4: Simplify right side
    265,987.20x = 53,271,460,173.39
  5. Step 5: Solve for x
    x = 53,271,460,173.39/265,987.20
  6. Step 6: Final answer
    x = 200,278.28

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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.